First version.

src/client/cl_avi.c

@@ -0,0 +1,664 @@
+/*
+===========================================================================
+Copyright (C) 2005-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+#include "client.h"
+#include "snd_local.h"
+
+#define INDEX_FILE_EXTENSION ".index.dat"
+
+#define MAX_RIFF_CHUNKS 16
+
+typedef struct audioFormat_s
+{
+  int rate;
+  int format;
+  int channels;
+  int bits;
+
+  int sampleSize;
+  int totalBytes;
+} audioFormat_t;
+
+typedef struct aviFileData_s
+{
+  qboolean      fileOpen;
+  fileHandle_t  f;
+  char          fileName[ MAX_QPATH ];
+  int           fileSize;
+  int           moviOffset;
+  int           moviSize;
+
+  fileHandle_t  idxF;
+  int           numIndices;
+
+  int           frameRate;
+  int           framePeriod;
+  int           width, height;
+  int           numVideoFrames;
+  int           maxRecordSize;
+  qboolean      motionJpeg;
+
+  qboolean      audio;
+  audioFormat_t a;
+  int           numAudioFrames;
+
+  int           chunkStack[ MAX_RIFF_CHUNKS ];
+  int           chunkStackTop;
+
+  byte          *cBuffer, *eBuffer;
+} aviFileData_t;
+
+static aviFileData_t afd;
+
+#define MAX_AVI_BUFFER 2048
+
+static byte buffer[ MAX_AVI_BUFFER ];
+static int  bufIndex;
+
+/*
+===============
+SafeFS_Write
+===============
+*/
+static ID_INLINE void SafeFS_Write( const void *buffer, int len, fileHandle_t f )
+{
+  if( FS_Write( buffer, len, f ) < len )
+    Com_Error( ERR_DROP, "Failed to write avi file\n" );
+}
+
+/*
+===============
+WRITE_STRING
+===============
+*/
+static ID_INLINE void WRITE_STRING( const char *s )
+{
+  Com_Memcpy( &buffer[ bufIndex ], s, strlen( s ) );
+  bufIndex += strlen( s );
+}
+
+/*
+===============
+WRITE_4BYTES
+===============
+*/
+static ID_INLINE void WRITE_4BYTES( int x )
+{
+  buffer[ bufIndex + 0 ] = (byte)( ( x >>  0 ) & 0xFF );
+  buffer[ bufIndex + 1 ] = (byte)( ( x >>  8 ) & 0xFF );
+  buffer[ bufIndex + 2 ] = (byte)( ( x >> 16 ) & 0xFF );
+  buffer[ bufIndex + 3 ] = (byte)( ( x >> 24 ) & 0xFF );
+  bufIndex += 4;
+}
+
+/*
+===============
+WRITE_2BYTES
+===============
+*/
+static ID_INLINE void WRITE_2BYTES( int x )
+{
+  buffer[ bufIndex + 0 ] = (byte)( ( x >>  0 ) & 0xFF );
+  buffer[ bufIndex + 1 ] = (byte)( ( x >>  8 ) & 0xFF );
+  bufIndex += 2;
+}
+
+/*
+===============
+WRITE_1BYTES
+===============
+*/
+static ID_INLINE void WRITE_1BYTES( int x )
+{
+  buffer[ bufIndex ] = x;
+  bufIndex += 1;
+}
+
+/*
+===============
+START_CHUNK
+===============
+*/
+static ID_INLINE void START_CHUNK( const char *s )
+{
+  if( afd.chunkStackTop == MAX_RIFF_CHUNKS )
+  {
+    Com_Error( ERR_DROP, "ERROR: Top of chunkstack breached\n" );
+  }
+
+  afd.chunkStack[ afd.chunkStackTop ] = bufIndex;
+  afd.chunkStackTop++;
+  WRITE_STRING( s );
+  WRITE_4BYTES( 0 );
+}
+
+/*
+===============
+END_CHUNK
+===============
+*/
+static ID_INLINE void END_CHUNK( void )
+{
+  int endIndex = bufIndex;
+
+  if( afd.chunkStackTop <= 0 )
+  {
+    Com_Error( ERR_DROP, "ERROR: Bottom of chunkstack breached\n" );
+  }
+
+  afd.chunkStackTop--;
+  bufIndex = afd.chunkStack[ afd.chunkStackTop ];
+  bufIndex += 4;
+  WRITE_4BYTES( endIndex - bufIndex - 4 );
+  bufIndex = endIndex;
+  bufIndex = PAD( bufIndex, 2 );
+}
+
+/*
+===============
+CL_WriteAVIHeader
+===============
+*/
+void CL_WriteAVIHeader( void )
+{
+  bufIndex = 0;
+  afd.chunkStackTop = 0;
+
+  START_CHUNK( "RIFF" );
+  {
+    WRITE_STRING( "AVI " );
+    {
+      START_CHUNK( "LIST" );
+      {
+        WRITE_STRING( "hdrl" );
+        WRITE_STRING( "avih" );
+        WRITE_4BYTES( 56 );                     //"avih" "chunk" size
+        WRITE_4BYTES( afd.framePeriod );        //dwMicroSecPerFrame
+        WRITE_4BYTES( afd.maxRecordSize *
+            afd.frameRate );                    //dwMaxBytesPerSec
+        WRITE_4BYTES( 0 );                      //dwReserved1
+        WRITE_4BYTES( 0x110 );                  //dwFlags bits HAS_INDEX and IS_INTERLEAVED
+        WRITE_4BYTES( afd.numVideoFrames );     //dwTotalFrames
+        WRITE_4BYTES( 0 );                      //dwInitialFrame
+
+        if( afd.audio )                         //dwStreams
+          WRITE_4BYTES( 2 );
+        else
+          WRITE_4BYTES( 1 );
+
+        WRITE_4BYTES( afd.maxRecordSize );      //dwSuggestedBufferSize
+        WRITE_4BYTES( afd.width );              //dwWidth
+        WRITE_4BYTES( afd.height );             //dwHeight
+        WRITE_4BYTES( 0 );                      //dwReserved[ 0 ]
+        WRITE_4BYTES( 0 );                      //dwReserved[ 1 ]
+        WRITE_4BYTES( 0 );                      //dwReserved[ 2 ]
+        WRITE_4BYTES( 0 );                      //dwReserved[ 3 ]
+
+        START_CHUNK( "LIST" );
+        {
+          WRITE_STRING( "strl" );
+          WRITE_STRING( "strh" );
+          WRITE_4BYTES( 56 );                   //"strh" "chunk" size
+          WRITE_STRING( "vids" );
+
+          if( afd.motionJpeg )
+            WRITE_STRING( "MJPG" );
+          else
+            WRITE_4BYTES( 0 );                  // BI_RGB
+
+          WRITE_4BYTES( 0 );                    //dwFlags
+          WRITE_4BYTES( 0 );                    //dwPriority
+          WRITE_4BYTES( 0 );                    //dwInitialFrame
+
+          WRITE_4BYTES( 1 );                    //dwTimescale
+          WRITE_4BYTES( afd.frameRate );        //dwDataRate
+          WRITE_4BYTES( 0 );                    //dwStartTime
+          WRITE_4BYTES( afd.numVideoFrames );   //dwDataLength
+
+          WRITE_4BYTES( afd.maxRecordSize );    //dwSuggestedBufferSize
+          WRITE_4BYTES( -1 );                   //dwQuality
+          WRITE_4BYTES( 0 );                    //dwSampleSize
+          WRITE_2BYTES( 0 );                    //rcFrame
+          WRITE_2BYTES( 0 );                    //rcFrame
+          WRITE_2BYTES( afd.width );            //rcFrame
+          WRITE_2BYTES( afd.height );           //rcFrame
+
+          WRITE_STRING( "strf" );
+          WRITE_4BYTES( 40 );                   //"strf" "chunk" size
+          WRITE_4BYTES( 40 );                   //biSize
+          WRITE_4BYTES( afd.width );            //biWidth
+          WRITE_4BYTES( afd.height );           //biHeight
+          WRITE_2BYTES( 1 );                    //biPlanes
+          WRITE_2BYTES( 24 );                   //biBitCount
+
+          if( afd.motionJpeg )   {              //biCompression
+            WRITE_STRING( "MJPG" );
+            WRITE_4BYTES( afd.width *
+              afd.height );                     //biSizeImage
+          } else {
+            WRITE_4BYTES( 0 );                  // BI_RGB
+            WRITE_4BYTES( afd.width *
+            afd.height*3 );                     //biSizeImage
+          }
+
+          WRITE_4BYTES( 0 );                    //biXPelsPetMeter
+          WRITE_4BYTES( 0 );                    //biYPelsPetMeter
+          WRITE_4BYTES( 0 );                    //biClrUsed
+          WRITE_4BYTES( 0 );                    //biClrImportant
+        }
+        END_CHUNK( );
+
+        if( afd.audio )
+        {
+          START_CHUNK( "LIST" );
+          {
+            WRITE_STRING( "strl" );
+            WRITE_STRING( "strh" );
+            WRITE_4BYTES( 56 );                 //"strh" "chunk" size
+            WRITE_STRING( "auds" );
+            WRITE_4BYTES( 0 );                  //FCC
+            WRITE_4BYTES( 0 );                  //dwFlags
+            WRITE_4BYTES( 0 );                  //dwPriority
+            WRITE_4BYTES( 0 );                  //dwInitialFrame
+
+            WRITE_4BYTES( afd.a.sampleSize );   //dwTimescale
+            WRITE_4BYTES( afd.a.sampleSize *
+                afd.a.rate );                   //dwDataRate
+            WRITE_4BYTES( 0 );                  //dwStartTime
+            WRITE_4BYTES( afd.a.totalBytes /
+                afd.a.sampleSize );             //dwDataLength
+
+            WRITE_4BYTES( 0 );                  //dwSuggestedBufferSize
+            WRITE_4BYTES( -1 );                 //dwQuality
+            WRITE_4BYTES( afd.a.sampleSize );   //dwSampleSize
+            WRITE_2BYTES( 0 );                  //rcFrame
+            WRITE_2BYTES( 0 );                  //rcFrame
+            WRITE_2BYTES( 0 );                  //rcFrame
+            WRITE_2BYTES( 0 );                  //rcFrame
+
+            WRITE_STRING( "strf" );
+            WRITE_4BYTES( 18 );                 //"strf" "chunk" size
+            WRITE_2BYTES( afd.a.format );       //wFormatTag
+            WRITE_2BYTES( afd.a.channels );     //nChannels
+            WRITE_4BYTES( afd.a.rate );         //nSamplesPerSec
+            WRITE_4BYTES( afd.a.sampleSize *
+                afd.a.rate );                   //nAvgBytesPerSec
+            WRITE_2BYTES( afd.a.sampleSize );   //nBlockAlign
+            WRITE_2BYTES( afd.a.bits );         //wBitsPerSample
+            WRITE_2BYTES( 0 );                  //cbSize
+          }
+          END_CHUNK( );
+        }
+      }
+      END_CHUNK( );
+
+      afd.moviOffset = bufIndex;
+
+      START_CHUNK( "LIST" );
+      {
+        WRITE_STRING( "movi" );
+      }
+    }
+  }
+}
+
+/*
+===============
+CL_OpenAVIForWriting
+
+Creates an AVI file and gets it into a state where
+writing the actual data can begin
+===============
+*/
+qboolean CL_OpenAVIForWriting( const char *fileName )
+{
+  if( afd.fileOpen )
+    return qfalse;
+
+  Com_Memset( &afd, 0, sizeof( aviFileData_t ) );
+
+  // Don't start if a framerate has not been chosen
+  if( cl_aviFrameRate->integer <= 0 )
+  {
+    Com_Printf( S_COLOR_RED "cl_aviFrameRate must be >= 1\n" );
+    return qfalse;
+  }
+
+  if( ( afd.f = FS_FOpenFileWrite( fileName ) ) <= 0 )
+    return qfalse;
+
+  if( ( afd.idxF = FS_FOpenFileWrite(
+          va( "%s" INDEX_FILE_EXTENSION, fileName ) ) ) <= 0 )
+  {
+    FS_FCloseFile( afd.f );
+    return qfalse;
+  }
+
+  Q_strncpyz( afd.fileName, fileName, MAX_QPATH );
+
+  afd.frameRate = cl_aviFrameRate->integer;
+  afd.framePeriod = (int)( 1000000.0f / afd.frameRate );
+  afd.width = cls.glconfig.vidWidth;
+  afd.height = cls.glconfig.vidHeight;
+
+  if( cl_aviMotionJpeg->integer )
+    afd.motionJpeg = qtrue;
+  else
+    afd.motionJpeg = qfalse;
+
+  afd.cBuffer = Z_Malloc( afd.width * afd.height * 4 );
+  afd.eBuffer = Z_Malloc( afd.width * afd.height * 4 );
+
+  afd.a.rate = dma.speed;
+  afd.a.format = WAV_FORMAT_PCM;
+  afd.a.channels = dma.channels;
+  afd.a.bits = dma.samplebits;
+  afd.a.sampleSize = ( afd.a.bits / 8 ) * afd.a.channels;
+
+  if( afd.a.rate % afd.frameRate )
+  {
+    int suggestRate = afd.frameRate;
+
+    while( ( afd.a.rate % suggestRate ) && suggestRate >= 1 )
+      suggestRate--;
+
+    Com_Printf( S_COLOR_YELLOW "WARNING: cl_aviFrameRate is not a divisor "
+        "of the audio rate, suggest %d\n", suggestRate );
+  }
+
+  if( !Cvar_VariableIntegerValue( "s_initsound" ) )
+  {
+    afd.audio = qfalse;
+  }
+  else if( Q_stricmp( Cvar_VariableString( "s_backend" ), "OpenAL" ) )
+  {
+    if( afd.a.bits == 16 && afd.a.channels == 2 )
+      afd.audio = qtrue;
+    else
+      afd.audio = qfalse; //FIXME: audio not implemented for this case
+  }
+  else
+  {
+    afd.audio = qfalse;
+    Com_Printf( S_COLOR_YELLOW "WARNING: Audio capture is not supported "
+        "with OpenAL. Set s_useOpenAL to 0 for audio capture\n" );
+  }
+
+  // This doesn't write a real header, but allocates the
+  // correct amount of space at the beginning of the file
+  CL_WriteAVIHeader( );
+
+  SafeFS_Write( buffer, bufIndex, afd.f );
+  afd.fileSize = bufIndex;
+
+  bufIndex = 0;
+  START_CHUNK( "idx1" );
+  SafeFS_Write( buffer, bufIndex, afd.idxF );
+
+  afd.moviSize = 4; // For the "movi"
+  afd.fileOpen = qtrue;
+
+  return qtrue;
+}
+
+/*
+===============
+CL_CheckFileSize
+===============
+*/
+static qboolean CL_CheckFileSize( int bytesToAdd )
+{
+  unsigned int newFileSize;
+
+  newFileSize =
+    afd.fileSize +                // Current file size
+    bytesToAdd +                  // What we want to add
+    ( afd.numIndices * 16 ) +     // The index
+    4;                            // The index size
+
+  // I assume all the operating systems
+  // we target can handle a 2Gb file
+  if( newFileSize > INT_MAX )
+  {
+    // Close the current file...
+    CL_CloseAVI( );
+
+    // ...And open a new one
+    CL_OpenAVIForWriting( va( "%s_", afd.fileName ) );
+
+    return qtrue;
+  }
+
+  return qfalse;
+}
+
+/*
+===============
+CL_WriteAVIVideoFrame
+===============
+*/
+void CL_WriteAVIVideoFrame( const byte *imageBuffer, int size )
+{
+  int   chunkOffset = afd.fileSize - afd.moviOffset - 8;
+  int   chunkSize = 8 + size;
+  int   paddingSize = PAD( size, 2 ) - size;
+  byte  padding[ 4 ] = { 0 };
+
+  if( !afd.fileOpen )
+    return;
+
+  // Chunk header + contents + padding
+  if( CL_CheckFileSize( 8 + size + 2 ) )
+    return;
+
+  bufIndex = 0;
+  WRITE_STRING( "00dc" );
+  WRITE_4BYTES( size );
+
+  SafeFS_Write( buffer, 8, afd.f );
+  SafeFS_Write( imageBuffer, size, afd.f );
+  SafeFS_Write( padding, paddingSize, afd.f );
+  afd.fileSize += ( chunkSize + paddingSize );
+
+  afd.numVideoFrames++;
+  afd.moviSize += ( chunkSize + paddingSize );
+
+  if( size > afd.maxRecordSize )
+    afd.maxRecordSize = size;
+
+  // Index
+  bufIndex = 0;
+  WRITE_STRING( "00dc" );           //dwIdentifier
+  WRITE_4BYTES( 0x00000010 );       //dwFlags (all frames are KeyFrames)
+  WRITE_4BYTES( chunkOffset );      //dwOffset
+  WRITE_4BYTES( size );             //dwLength
+  SafeFS_Write( buffer, 16, afd.idxF );
+
+  afd.numIndices++;
+}
+
+#define PCM_BUFFER_SIZE 44100
+
+/*
+===============
+CL_WriteAVIAudioFrame
+===============
+*/
+void CL_WriteAVIAudioFrame( const byte *pcmBuffer, int size )
+{
+  static byte pcmCaptureBuffer[ PCM_BUFFER_SIZE ] = { 0 };
+  static int  bytesInBuffer = 0;
+
+  if( !afd.audio )
+    return;
+
+  if( !afd.fileOpen )
+    return;
+
+  // Chunk header + contents + padding
+  if( CL_CheckFileSize( 8 + bytesInBuffer + size + 2 ) )
+    return;
+
+  if( bytesInBuffer + size > PCM_BUFFER_SIZE )
+  {
+    Com_Printf( S_COLOR_YELLOW
+        "WARNING: Audio capture buffer overflow -- truncating\n" );
+    size = PCM_BUFFER_SIZE - bytesInBuffer;
+  }
+
+  Com_Memcpy( &pcmCaptureBuffer[ bytesInBuffer ], pcmBuffer, size );
+  bytesInBuffer += size;
+
+  // Only write if we have a frame's worth of audio
+  if( bytesInBuffer >= (int)ceil( (float)afd.a.rate / (float)afd.frameRate ) *
+        afd.a.sampleSize )
+  {
+    int   chunkOffset = afd.fileSize - afd.moviOffset - 8;
+    int   chunkSize = 8 + bytesInBuffer;
+    int   paddingSize = PAD( bytesInBuffer, 2 ) - bytesInBuffer;
+    byte  padding[ 4 ] = { 0 };
+
+    bufIndex = 0;
+    WRITE_STRING( "01wb" );
+    WRITE_4BYTES( bytesInBuffer );
+
+    SafeFS_Write( buffer, 8, afd.f );
+    SafeFS_Write( pcmBuffer, bytesInBuffer, afd.f );
+    SafeFS_Write( padding, paddingSize, afd.f );
+    afd.fileSize += ( chunkSize + paddingSize );
+
+    afd.numAudioFrames++;
+    afd.moviSize += ( chunkSize + paddingSize );
+    afd.a.totalBytes =+ bytesInBuffer;
+
+    // Index
+    bufIndex = 0;
+    WRITE_STRING( "01wb" );           //dwIdentifier
+    WRITE_4BYTES( 0 );                //dwFlags
+    WRITE_4BYTES( chunkOffset );      //dwOffset
+    WRITE_4BYTES( bytesInBuffer );    //dwLength
+    SafeFS_Write( buffer, 16, afd.idxF );
+
+    afd.numIndices++;
+
+    bytesInBuffer = 0;
+  }
+}
+
+/*
+===============
+CL_TakeVideoFrame
+===============
+*/
+void CL_TakeVideoFrame( void )
+{
+  // AVI file isn't open
+  if( !afd.fileOpen )
+    return;
+
+  re.TakeVideoFrame( afd.width, afd.height,
+      afd.cBuffer, afd.eBuffer, afd.motionJpeg );
+}
+
+/*
+===============
+CL_CloseAVI
+
+Closes the AVI file and writes an index chunk
+===============
+*/
+qboolean CL_CloseAVI( void )
+{
+  int indexRemainder;
+  int indexSize = afd.numIndices * 16;
+  const char *idxFileName = va( "%s" INDEX_FILE_EXTENSION, afd.fileName );
+
+  // AVI file isn't open
+  if( !afd.fileOpen )
+    return qfalse;
+
+  afd.fileOpen = qfalse;
+
+  FS_Seek( afd.idxF, 4, FS_SEEK_SET );
+  bufIndex = 0;
+  WRITE_4BYTES( indexSize );
+  SafeFS_Write( buffer, bufIndex, afd.idxF );
+  FS_FCloseFile( afd.idxF );
+
+  // Write index
+
+  // Open the temp index file
+  if( ( indexSize = FS_FOpenFileRead( idxFileName,
+          &afd.idxF, qtrue ) ) <= 0 )
+  {
+    FS_FCloseFile( afd.f );
+    return qfalse;
+  }
+
+  indexRemainder = indexSize;
+
+  // Append index to end of avi file
+  while( indexRemainder > MAX_AVI_BUFFER )
+  {
+    FS_Read( buffer, MAX_AVI_BUFFER, afd.idxF );
+    SafeFS_Write( buffer, MAX_AVI_BUFFER, afd.f );
+    afd.fileSize += MAX_AVI_BUFFER;
+    indexRemainder -= MAX_AVI_BUFFER;
+  }
+  FS_Read( buffer, indexRemainder, afd.idxF );
+  SafeFS_Write( buffer, indexRemainder, afd.f );
+  afd.fileSize += indexRemainder;
+  FS_FCloseFile( afd.idxF );
+
+  // Remove temp index file
+  FS_HomeRemove( idxFileName );
+
+  // Write the real header
+  FS_Seek( afd.f, 0, FS_SEEK_SET );
+  CL_WriteAVIHeader( );
+
+  bufIndex = 4;
+  WRITE_4BYTES( afd.fileSize - 8 ); // "RIFF" size
+
+  bufIndex = afd.moviOffset + 4;    // Skip "LIST"
+  WRITE_4BYTES( afd.moviSize );
+
+  SafeFS_Write( buffer, bufIndex, afd.f );
+
+  Z_Free( afd.cBuffer );
+  Z_Free( afd.eBuffer );
+  FS_FCloseFile( afd.f );
+
+  Com_Printf( "Wrote %d:%d frames to %s\n", afd.numVideoFrames, afd.numAudioFrames, afd.fileName );
+
+  return qtrue;
+}
+
+/*
+===============
+CL_VideoRecording
+===============
+*/
+qboolean CL_VideoRecording( void )
+{
+  return afd.fileOpen;
+}

src/client/cl_console.c

@@ -0,0 +1,701 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+// console.c
+
+#include "client.h"
+
+
+int g_console_field_width = 78;
+
+
+#define	NUM_CON_TIMES 4
+
+#define		CON_TEXTSIZE	32768
+typedef struct {
+	qboolean	initialized;
+
+	short	text[CON_TEXTSIZE];
+	int		current;		// line where next message will be printed
+	int		x;				// offset in current line for next print
+	int		display;		// bottom of console displays this line
+
+	int 	linewidth;		// characters across screen
+	int		totallines;		// total lines in console scrollback
+
+	float	xadjust;		// for wide aspect screens
+
+	float	displayFrac;	// aproaches finalFrac at scr_conspeed
+	float	finalFrac;		// 0.0 to 1.0 lines of console to display
+
+	int		vislines;		// in scanlines
+
+	vec4_t	color;
+} console_t;
+
+extern	console_t	con;
+
+console_t	con;
+
+cvar_t		*con_conspeed;
+
+#define	DEFAULT_CONSOLE_WIDTH	78
+
+vec4_t	console_color = {1.0, 1.0, 1.0, 1.0};
+
+
+/*
+================
+Con_ToggleConsole_f
+================
+*/
+void Con_ToggleConsole_f (void) {
+	// closing a full screen console restarts the demo loop
+	if ( cls.state == CA_DISCONNECTED && cls.keyCatchers == KEYCATCH_CONSOLE ) {
+		CL_StartDemoLoop();
+		return;
+	}
+
+	Field_Clear( &g_consoleField );
+	g_consoleField.widthInChars = g_console_field_width;
+
+	cls.keyCatchers ^= KEYCATCH_CONSOLE;
+}
+
+/*
+================
+Con_MessageMode_f
+================
+*/
+void Con_MessageMode_f (void) {
+	chat_playerNum = -1;
+	chat_team = qfalse;
+	Field_Clear( &chatField );
+	chatField.widthInChars = 30;
+
+	cls.keyCatchers ^= KEYCATCH_MESSAGE;
+}
+
+/*
+================
+Con_MessageMode2_f
+================
+*/
+void Con_MessageMode2_f (void) {
+	chat_playerNum = -1;
+	chat_team = qtrue;
+	Field_Clear( &chatField );
+	chatField.widthInChars = 25;
+	cls.keyCatchers ^= KEYCATCH_MESSAGE;
+}
+
+/*
+================
+Con_MessageMode3_f
+================
+*/
+void Con_MessageMode3_f (void) {
+	chat_playerNum = VM_Call( cgvm, CG_CROSSHAIR_PLAYER );
+	if ( chat_playerNum < 0 || chat_playerNum >= MAX_CLIENTS ) {
+		chat_playerNum = -1;
+		return;
+	}
+	chat_team = qfalse;
+	Field_Clear( &chatField );
+	chatField.widthInChars = 30;
+	cls.keyCatchers ^= KEYCATCH_MESSAGE;
+}
+
+/*
+================
+Con_MessageMode4_f
+================
+*/
+void Con_MessageMode4_f (void) {
+	chat_playerNum = VM_Call( cgvm, CG_LAST_ATTACKER );
+	if ( chat_playerNum < 0 || chat_playerNum >= MAX_CLIENTS ) {
+		chat_playerNum = -1;
+		return;
+	}
+	chat_team = qfalse;
+	Field_Clear( &chatField );
+	chatField.widthInChars = 30;
+	cls.keyCatchers ^= KEYCATCH_MESSAGE;
+}
+
+/*
+================
+Con_Clear_f
+================
+*/
+void Con_Clear_f (void) {
+	int		i;
+
+	for ( i = 0 ; i < CON_TEXTSIZE ; i++ ) {
+		con.text[i] = (ColorIndex(COLOR_WHITE)<<8) | ' ';
+	}
+
+	Con_Bottom();		// go to end
+}
+
+						
+/*
+================
+Con_Dump_f
+
+Save the console contents out to a file
+================
+*/
+void Con_Dump_f (void)
+{
+	int		l, x, i;
+	short	*line;
+	fileHandle_t	f;
+	char	buffer[1024];
+
+	if (Cmd_Argc() != 2)
+	{
+		Com_Printf ("usage: condump <filename>\n");
+		return;
+	}
+
+	Com_Printf ("Dumped console text to %s.\n", Cmd_Argv(1) );
+
+	f = FS_FOpenFileWrite( Cmd_Argv( 1 ) );
+	if (!f)
+	{
+		Com_Printf ("ERROR: couldn't open.\n");
+		return;
+	}
+
+	// skip empty lines
+	for (l = con.current - con.totallines + 1 ; l <= con.current ; l++)
+	{
+		line = con.text + (l%con.totallines)*con.linewidth;
+		for (x=0 ; x<con.linewidth ; x++)
+			if ((line[x] & 0xff) != ' ')
+				break;
+		if (x != con.linewidth)
+			break;
+	}
+
+	// write the remaining lines
+	buffer[con.linewidth] = 0;
+	for ( ; l <= con.current ; l++)
+	{
+		line = con.text + (l%con.totallines)*con.linewidth;
+		for(i=0; i<con.linewidth; i++)
+			buffer[i] = line[i] & 0xff;
+		for (x=con.linewidth-1 ; x>=0 ; x--)
+		{
+			if (buffer[x] == ' ')
+				buffer[x] = 0;
+			else
+				break;
+		}
+		strcat( buffer, "\n" );
+		FS_Write(buffer, strlen(buffer), f);
+	}
+
+	FS_FCloseFile( f );
+}
+
+						
+/*
+================
+Con_ClearNotify
+================
+*/
+void Con_ClearNotify( void ) {
+	Cmd_TokenizeString( NULL );
+	CL_GameConsoleText( );
+}
+
+						
+
+/*
+================
+Con_CheckResize
+
+If the line width has changed, reformat the buffer.
+================
+*/
+void Con_CheckResize (void)
+{
+	int		i, j, width, oldwidth, oldtotallines, numlines, numchars;
+	short	tbuf[CON_TEXTSIZE];
+
+	width = (SCREEN_WIDTH / SMALLCHAR_WIDTH) - 2;
+
+	if (width == con.linewidth)
+		return;
+
+	if (width < 1)			// video hasn't been initialized yet
+	{
+		width = DEFAULT_CONSOLE_WIDTH;
+		con.linewidth = width;
+		con.totallines = CON_TEXTSIZE / con.linewidth;
+		for(i=0; i<CON_TEXTSIZE; i++)
+
+			con.text[i] = (ColorIndex(COLOR_WHITE)<<8) | ' ';
+	}
+	else
+	{
+		oldwidth = con.linewidth;
+		con.linewidth = width;
+		oldtotallines = con.totallines;
+		con.totallines = CON_TEXTSIZE / con.linewidth;
+		numlines = oldtotallines;
+
+		if (con.totallines < numlines)
+			numlines = con.totallines;
+
+		numchars = oldwidth;
+	
+		if (con.linewidth < numchars)
+			numchars = con.linewidth;
+
+		Com_Memcpy (tbuf, con.text, CON_TEXTSIZE * sizeof(short));
+		for(i=0; i<CON_TEXTSIZE; i++)
+
+			con.text[i] = (ColorIndex(COLOR_WHITE)<<8) | ' ';
+
+
+		for (i=0 ; i<numlines ; i++)
+		{
+			for (j=0 ; j<numchars ; j++)
+			{
+				con.text[(con.totallines - 1 - i) * con.linewidth + j] =
+						tbuf[((con.current - i + oldtotallines) %
+							  oldtotallines) * oldwidth + j];
+			}
+		}
+	}
+
+	con.current = con.totallines - 1;
+	con.display = con.current;
+}
+
+
+/*
+================
+Con_Init
+================
+*/
+void Con_Init (void) {
+	int		i;
+
+	con_conspeed = Cvar_Get ("scr_conspeed", "3", 0);
+
+	Field_Clear( &g_consoleField );
+	g_consoleField.widthInChars = g_console_field_width;
+	for ( i = 0 ; i < COMMAND_HISTORY ; i++ ) {
+		Field_Clear( &historyEditLines[i] );
+		historyEditLines[i].widthInChars = g_console_field_width;
+	}
+	CL_LoadConsoleHistory( );
+
+	Cmd_AddCommand ("toggleconsole", Con_ToggleConsole_f);
+	Cmd_AddCommand ("messagemode", Con_MessageMode_f);
+	Cmd_AddCommand ("messagemode2", Con_MessageMode2_f);
+	Cmd_AddCommand ("messagemode3", Con_MessageMode3_f);
+	Cmd_AddCommand ("messagemode4", Con_MessageMode4_f);
+	Cmd_AddCommand ("clear", Con_Clear_f);
+	Cmd_AddCommand ("condump", Con_Dump_f);
+}
+
+
+/*
+===============
+Con_Linefeed
+===============
+*/
+void Con_Linefeed (qboolean skipnotify)
+{
+	int		i;
+
+	con.x = 0;
+	if (con.display == con.current)
+		con.display++;
+	con.current++;
+	for(i=0; i<con.linewidth; i++)
+		con.text[(con.current%con.totallines)*con.linewidth+i] = (ColorIndex(COLOR_WHITE)<<8) | ' ';
+}
+
+/*
+================
+CL_ConsolePrint
+
+Handles cursor positioning, line wrapping, etc
+All console printing must go through this in order to be logged to disk
+If no console is visible, the text will appear at the top of the game window
+================
+*/
+void CL_ConsolePrint( char *txt ) {
+	int		y;
+	int		c, l;
+	int		color;
+	qboolean skipnotify = qfalse;		// NERVE - SMF
+
+	// TTimo - prefix for text that shows up in console but not in notify
+	// backported from RTCW
+	if ( !Q_strncmp( txt, "[skipnotify]", 12 ) ) {
+		skipnotify = qtrue;
+		txt += 12;
+	}
+	
+	// for some demos we don't want to ever show anything on the console
+	if ( cl_noprint && cl_noprint->integer ) {
+		return;
+	}
+	
+	if (!con.initialized) {
+		con.color[0] = 
+		con.color[1] = 
+		con.color[2] =
+		con.color[3] = 1.0f;
+		con.linewidth = -1;
+		Con_CheckResize ();
+		con.initialized = qtrue;
+	}
+
+	if( !skipnotify && !( cls.keyCatchers & KEYCATCH_CONSOLE ) ) {
+		Cmd_SaveCmdContext( );
+
+		// feed the text to cgame
+		Cmd_TokenizeString( txt );
+		CL_GameConsoleText( );
+
+		Cmd_RestoreCmdContext( );
+	}
+
+	color = ColorIndex(COLOR_WHITE);
+
+	while ( (c = *txt) != 0 ) {
+		if ( Q_IsColorString( txt ) ) {
+			color = ColorIndex( *(txt+1) );
+			txt += 2;
+			continue;
+		}
+
+		// count word length
+		for (l=0 ; l< con.linewidth ; l++) {
+			if ( txt[l] <= ' ') {
+				break;
+			}
+
+		}
+
+		// word wrap
+		if (l != con.linewidth && (con.x + l >= con.linewidth) ) {
+			Con_Linefeed(skipnotify);
+
+		}
+
+		txt++;
+
+		switch (c)
+		{
+		case '\n':
+			Con_Linefeed (skipnotify);
+			break;
+		case '\r':
+			con.x = 0;
+			break;
+		default:	// display character and advance
+			y = con.current % con.totallines;
+			con.text[y*con.linewidth+con.x] = (color << 8) | c;
+			con.x++;
+			if (con.x >= con.linewidth) {
+				Con_Linefeed(skipnotify);
+				con.x = 0;
+			}
+			break;
+		}
+	}
+}
+
+
+/*
+==============================================================================
+
+DRAWING
+
+==============================================================================
+*/
+
+
+/*
+================
+Con_DrawInput
+
+Draw the editline after a ] prompt
+================
+*/
+void Con_DrawInput (void) {
+	int		y;
+
+	if ( cls.state != CA_DISCONNECTED && !(cls.keyCatchers & KEYCATCH_CONSOLE ) ) {
+		return;
+	}
+
+	y = con.vislines - ( SMALLCHAR_HEIGHT * 2 );
+
+	re.SetColor( con.color );
+
+	SCR_DrawSmallChar( con.xadjust + 1 * SMALLCHAR_WIDTH, y, ']' );
+
+	Field_Draw( &g_consoleField, con.xadjust + 2 * SMALLCHAR_WIDTH, y,
+		SCREEN_WIDTH - 3 * SMALLCHAR_WIDTH, qtrue );
+}
+
+/*
+================
+Con_DrawSolidConsole
+
+Draws the console with the solid background
+================
+*/
+void Con_DrawSolidConsole( float frac ) {
+	int				i, x, y;
+	int				rows;
+	short			*text;
+	int				row;
+	int				lines;
+//	qhandle_t		conShader;
+	int				currentColor;
+	vec4_t			color;
+
+	lines = cls.glconfig.vidHeight * frac;
+	if (lines <= 0)
+		return;
+
+	if (lines > cls.glconfig.vidHeight )
+		lines = cls.glconfig.vidHeight;
+
+	// on wide screens, we will center the text
+	con.xadjust = 0;
+	SCR_AdjustFrom640( &con.xadjust, NULL, NULL, NULL );
+
+	// draw the background
+	y = frac * SCREEN_HEIGHT - 2;
+	if ( y < 1 ) {
+		y = 0;
+	}
+	else {
+		SCR_DrawPic( 0, 0, SCREEN_WIDTH, y, cls.consoleShader );
+	}
+
+	color[0] = 1;
+	color[1] = 0;
+	color[2] = 0;
+	color[3] = 1;
+	SCR_FillRect( 0, y, SCREEN_WIDTH, 2, color );
+
+
+	// draw the version number
+
+	re.SetColor( g_color_table[ColorIndex(COLOR_RED)] );
+
+	i = strlen( SVN_VERSION );
+
+	for (x=0 ; x<i ; x++) {
+
+		SCR_DrawSmallChar( cls.glconfig.vidWidth - ( i - x ) * SMALLCHAR_WIDTH, 
+
+			(lines-(SMALLCHAR_HEIGHT+SMALLCHAR_HEIGHT/2)), SVN_VERSION[x] );
+
+	}
+
+
+	// draw the text
+	con.vislines = lines;
+	rows = (lines-SMALLCHAR_WIDTH)/SMALLCHAR_WIDTH;		// rows of text to draw
+
+	y = lines - (SMALLCHAR_HEIGHT*3);
+
+	// draw from the bottom up
+	if (con.display != con.current)
+	{
+	// draw arrows to show the buffer is backscrolled
+		re.SetColor( g_color_table[ColorIndex(COLOR_RED)] );
+		for (x=0 ; x<con.linewidth ; x+=4)
+			SCR_DrawSmallChar( con.xadjust + (x+1)*SMALLCHAR_WIDTH, y, '^' );
+		y -= SMALLCHAR_HEIGHT;
+		rows--;
+	}
+	
+	row = con.display;
+
+	if ( con.x == 0 ) {
+		row--;
+	}
+
+	currentColor = 7;
+	re.SetColor( g_color_table[currentColor] );
+
+	for (i=0 ; i<rows ; i++, y -= SMALLCHAR_HEIGHT, row--)
+	{
+		if (row < 0)
+			break;
+		if (con.current - row >= con.totallines) {
+			// past scrollback wrap point
+			continue;	
+		}
+
+		text = con.text + (row % con.totallines)*con.linewidth;
+
+		for (x=0 ; x<con.linewidth ; x++) {
+			if ( ( text[x] & 0xff ) == ' ' ) {
+				continue;
+			}
+
+			if ( ( (text[x]>>8)&7 ) != currentColor ) {
+				currentColor = (text[x]>>8)&7;
+				re.SetColor( g_color_table[currentColor] );
+			}
+			SCR_DrawSmallChar(  con.xadjust + (x+1)*SMALLCHAR_WIDTH, y, text[x] & 0xff );
+		}
+	}
+
+	// draw the input prompt, user text, and cursor if desired
+	Con_DrawInput ();
+
+	re.SetColor( NULL );
+}
+
+
+
+/*
+==================
+Con_DrawConsole
+==================
+*/
+void Con_DrawConsole( void ) {
+	// check for console width changes from a vid mode change
+	Con_CheckResize ();
+
+	// if disconnected, render console full screen
+	if ( cls.state == CA_DISCONNECTED ) {
+		if ( !( cls.keyCatchers & (KEYCATCH_UI | KEYCATCH_CGAME)) ) {
+			Con_DrawSolidConsole( 1.0 );
+			return;
+		}
+	}
+
+	if ( con.displayFrac ) {
+		Con_DrawSolidConsole( con.displayFrac );
+	}
+
+	if( cls.keyCatchers & ( KEYCATCH_UI | KEYCATCH_CGAME ) )
+		return;
+
+	// draw the chat line
+	if( cls.keyCatchers & KEYCATCH_MESSAGE )
+	{
+		int skip;
+
+		if( chat_team )
+		{
+			SCR_DrawBigString( 8, 232, "Team Say:", 1.0f );
+			skip = 11;
+		}
+		else
+		{ 
+			SCR_DrawBigString( 8, 232, "Say:", 1.0f );
+			skip = 5;
+		}
+
+		Field_BigDraw( &chatField, skip * BIGCHAR_WIDTH, 232,
+				SCREEN_WIDTH - ( skip + 1 ) * BIGCHAR_WIDTH, qtrue );
+	}
+}
+
+//================================================================
+
+/*
+==================
+Con_RunConsole
+
+Scroll it up or down
+==================
+*/
+void Con_RunConsole (void) {
+	// decide on the destination height of the console
+	if ( cls.keyCatchers & KEYCATCH_CONSOLE )
+		con.finalFrac = 0.5;		// half screen
+	else
+		con.finalFrac = 0;				// none visible
+	
+	// scroll towards the destination height
+	if (con.finalFrac < con.displayFrac)
+	{
+		con.displayFrac -= con_conspeed->value*cls.realFrametime*0.001;
+		if (con.finalFrac > con.displayFrac)
+			con.displayFrac = con.finalFrac;
+
+	}
+	else if (con.finalFrac > con.displayFrac)
+	{
+		con.displayFrac += con_conspeed->value*cls.realFrametime*0.001;
+		if (con.finalFrac < con.displayFrac)
+			con.displayFrac = con.finalFrac;
+	}
+
+}
+
+
+void Con_PageUp( void ) {
+	con.display -= 2;
+	if ( con.current - con.display >= con.totallines ) {
+		con.display = con.current - con.totallines + 1;
+	}
+}
+
+void Con_PageDown( void ) {
+	con.display += 2;
+	if (con.display > con.current) {
+		con.display = con.current;
+	}
+}
+
+void Con_Top( void ) {
+	con.display = con.totallines;
+	if ( con.current - con.display >= con.totallines ) {
+		con.display = con.current - con.totallines + 1;
+	}
+}
+
+void Con_Bottom( void ) {
+	con.display = con.current;
+}
+
+
+void Con_Close( void ) {
+	if ( !com_cl_running->integer ) {
+		return;
+	}
+	Field_Clear( &g_consoleField );
+	cls.keyCatchers &= ~KEYCATCH_CONSOLE;
+	con.finalFrac = 0;				// none visible
+	con.displayFrac = 0;
+}

src/client/cl_curl.c

@@ -0,0 +1,360 @@
+/*
+===========================================================================
+Copyright (C) 2006 Tony J. White (tjw@tjw.org)
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+#if USE_CURL
+#include "client.h"
+cvar_t *cl_cURLLib;
+
+#if USE_CURL_DLOPEN
+
+#if USE_SDL_VIDEO
+#include "SDL.h"
+#include "SDL_loadso.h"
+#define OBJTYPE void *
+#define OBJLOAD(x) SDL_LoadObject(x)
+#define SYMLOAD(x,y) SDL_LoadFunction(x,y)
+#define OBJFREE(x) SDL_UnloadObject(x)
+
+#elif defined _WIN32
+#include <windows.h>
+#define OBJTYPE HMODULE
+#define OBJLOAD(x) LoadLibrary(x)
+#define SYMLOAD(x,y) GetProcAddress(x,y)
+#define OBJFREE(x) FreeLibrary(x)
+
+#elif defined __linux__ || defined __FreeBSD__ || defined MACOS_X || defined __sun
+#include <dlfcn.h>
+#define OBJTYPE void *
+#define OBJLOAD(x) dlopen(x, RTLD_LAZY | RTLD_GLOBAL)
+#define SYMLOAD(x,y) dlsym(x,y)
+#define OBJFREE(x) dlclose(x)
+#else
+
+#error "Your platform has no lib loading code or it is disabled"
+#endif
+
+#if defined __linux__ || defined __FreeBSD__ || defined MACOS_X
+#include <unistd.h>
+#include <sys/types.h>
+#endif
+
+char* (*qcurl_version)(void);
+
+CURL* (*qcurl_easy_init)(void);
+CURLcode (*qcurl_easy_setopt)(CURL *curl, CURLoption option, ...);
+CURLcode (*qcurl_easy_perform)(CURL *curl);
+void (*qcurl_easy_cleanup)(CURL *curl);
+CURLcode (*qcurl_easy_getinfo)(CURL *curl, CURLINFO info, ...);
+CURL* (*qcurl_easy_duphandle)(CURL *curl);
+void (*qcurl_easy_reset)(CURL *curl);
+const char *(*qcurl_easy_strerror)(CURLcode);
+
+CURLM* (*qcurl_multi_init)(void);
+CURLMcode (*qcurl_multi_add_handle)(CURLM *multi_handle,
+                                                CURL *curl_handle);
+CURLMcode (*qcurl_multi_remove_handle)(CURLM *multi_handle,
+                                                CURL *curl_handle);
+CURLMcode (*qcurl_multi_fdset)(CURLM *multi_handle,
+                                                fd_set *read_fd_set,
+                                                fd_set *write_fd_set,
+                                                fd_set *exc_fd_set,
+                                                int *max_fd);
+CURLMcode (*qcurl_multi_perform)(CURLM *multi_handle,
+                                                int *running_handles);
+CURLMcode (*qcurl_multi_cleanup)(CURLM *multi_handle);
+CURLMsg *(*qcurl_multi_info_read)(CURLM *multi_handle,
+                                                int *msgs_in_queue);
+const char *(*qcurl_multi_strerror)(CURLMcode);
+
+static OBJTYPE cURLLib = NULL;
+
+/*
+=================
+GPA
+=================
+*/
+static void *GPA(char *str)
+{
+	void *rv;
+
+	rv = SYMLOAD(cURLLib, str);
+	if(!rv)
+	{
+		Com_Printf("Can't load symbol %s\n", str);
+		clc.cURLEnabled = qfalse;
+		return NULL;
+	}
+	else
+	{
+		Com_DPrintf("Loaded symbol %s (0x%p)\n", str, rv);
+        return rv;
+	}
+}
+#endif /* USE_CURL_DLOPEN */
+
+/*
+=================
+CL_cURL_Init
+=================
+*/
+qboolean CL_cURL_Init()
+{
+#if USE_CURL_DLOPEN
+	if(cURLLib)
+		return qtrue;
+
+
+	Com_Printf("Loading \"%s\"...", cl_cURLLib->string);
+	if( (cURLLib = OBJLOAD(cl_cURLLib->string)) == 0 )
+	{
+#ifdef _WIN32
+		return qfalse;
+#else
+		char fn[1024];
+		getcwd(fn, sizeof(fn));
+		strncat(fn, "/", sizeof(fn)-strlen(fn)-1);
+		strncat(fn, cl_cURLLib->string, sizeof(fn)-strlen(fn)-1);
+
+		if( (cURLLib = OBJLOAD(fn)) == 0 )
+		{
+			return qfalse;
+		}
+#endif /* _WIN32 */
+	}
+
+	clc.cURLEnabled = qtrue;
+
+	qcurl_version = GPA("curl_version");
+
+	qcurl_easy_init = GPA("curl_easy_init");
+	qcurl_easy_setopt = GPA("curl_easy_setopt");
+	qcurl_easy_perform = GPA("curl_easy_perform");
+	qcurl_easy_cleanup = GPA("curl_easy_cleanup");
+	qcurl_easy_getinfo = GPA("curl_easy_getinfo");
+	qcurl_easy_duphandle = GPA("curl_easy_duphandle");
+	qcurl_easy_reset = GPA("curl_easy_reset");
+	qcurl_easy_strerror = GPA("curl_easy_strerror");
+	
+	qcurl_multi_init = GPA("curl_multi_init");
+	qcurl_multi_add_handle = GPA("curl_multi_add_handle");
+	qcurl_multi_remove_handle = GPA("curl_multi_remove_handle");
+	qcurl_multi_fdset = GPA("curl_multi_fdset");
+	qcurl_multi_perform = GPA("curl_multi_perform");
+	qcurl_multi_cleanup = GPA("curl_multi_cleanup");
+	qcurl_multi_info_read = GPA("curl_multi_info_read");
+	qcurl_multi_strerror = GPA("curl_multi_strerror");
+
+	if(!clc.cURLEnabled)
+	{
+		CL_cURL_Shutdown();
+		Com_Printf("FAIL One or more symbols not found\n");
+		return qfalse;
+	}
+	Com_Printf("OK\n");
+
+	return qtrue;
+#else
+	clc.cURLEnabled = qtrue;
+	return qtrue;
+#endif /* USE_CURL_DLOPEN */
+}
+
+/*
+=================
+CL_cURL_Shutdown
+=================
+*/
+void CL_cURL_Shutdown( void )
+{
+	CL_cURL_Cleanup();
+#if USE_CURL_DLOPEN
+	if(cURLLib)
+	{
+		OBJFREE(cURLLib);
+		cURLLib = NULL;
+	}
+	qcurl_easy_init = NULL;
+	qcurl_easy_setopt = NULL;
+	qcurl_easy_perform = NULL;
+	qcurl_easy_cleanup = NULL;
+	qcurl_easy_getinfo = NULL;
+	qcurl_easy_duphandle = NULL;
+	qcurl_easy_reset = NULL;
+
+	qcurl_multi_init = NULL;
+	qcurl_multi_add_handle = NULL;
+	qcurl_multi_remove_handle = NULL;
+	qcurl_multi_fdset = NULL;
+	qcurl_multi_perform = NULL;
+	qcurl_multi_cleanup = NULL;
+	qcurl_multi_info_read = NULL;
+	qcurl_multi_strerror = NULL;
+#endif /* USE_CURL_DLOPEN */
+}
+
+void CL_cURL_Cleanup(void)
+{
+	if(clc.downloadCURLM) {
+		if(clc.downloadCURL) {
+			qcurl_multi_remove_handle(clc.downloadCURLM,
+				clc.downloadCURL);
+			qcurl_easy_cleanup(clc.downloadCURL);
+		}
+		qcurl_multi_cleanup(clc.downloadCURLM);
+		clc.downloadCURLM = NULL;
+		clc.downloadCURL = NULL;
+	}
+	else if(clc.downloadCURL) {
+		qcurl_easy_cleanup(clc.downloadCURL);
+		clc.downloadCURL = NULL;
+	}
+}
+
+static int CL_cURL_CallbackProgress( void *dummy, double dltotal, double dlnow,
+	double ultotal, double ulnow )
+{
+	clc.downloadSize = (int)dltotal;
+	Cvar_SetValue( "cl_downloadSize", clc.downloadSize );
+	clc.downloadCount = (int)dlnow;
+	Cvar_SetValue( "cl_downloadCount", clc.downloadCount );
+	return 0;
+}
+
+static int CL_cURL_CallbackWrite(void *buffer, size_t size, size_t nmemb,
+	void *stream)
+{
+	FS_Write( buffer, size*nmemb, ((fileHandle_t*)stream)[0] );
+	return size*nmemb;
+}
+
+void CL_cURL_BeginDownload( const char *localName, const char *remoteURL )
+{
+	clc.cURLUsed = qtrue;
+	Com_Printf("URL: %s\n", remoteURL);
+	Com_DPrintf("***** CL_cURL_BeginDownload *****\n"
+		"Localname: %s\n"
+		"RemoteURL: %s\n"
+		"****************************\n", localName, remoteURL);
+	CL_cURL_Cleanup();
+	Q_strncpyz(clc.downloadURL, remoteURL, sizeof(clc.downloadURL));
+	Q_strncpyz(clc.downloadName, localName, sizeof(clc.downloadName));
+	Com_sprintf(clc.downloadTempName, sizeof(clc.downloadTempName),
+		"%s.tmp", localName);
+
+	// Set so UI gets access to it
+	Cvar_Set("cl_downloadName", localName);
+	Cvar_Set("cl_downloadSize", "0");
+	Cvar_Set("cl_downloadCount", "0");
+	Cvar_SetValue("cl_downloadTime", cls.realtime);
+
+	clc.downloadBlock = 0; // Starting new file
+	clc.downloadCount = 0;
+
+	clc.downloadCURL = qcurl_easy_init();
+	if(!clc.downloadCURL) {
+		Com_Error(ERR_DROP, "CL_cURL_BeginDownload: qcurl_easy_init() "
+			"failed\n");
+		return;
+	}
+	clc.download = FS_SV_FOpenFileWrite(clc.downloadTempName);
+	if(!clc.download) {
+		Com_Error(ERR_DROP, "CL_cURL_BeginDownload: failed to open "
+			"%s for writing\n", clc.downloadTempName);
+		return;
+	}
+	qcurl_easy_setopt(clc.downloadCURL, CURLOPT_WRITEDATA, clc.download);
+	if(com_developer->integer)
+		qcurl_easy_setopt(clc.downloadCURL, CURLOPT_VERBOSE, 1);
+	qcurl_easy_setopt(clc.downloadCURL, CURLOPT_URL, clc.downloadURL);
+	qcurl_easy_setopt(clc.downloadCURL, CURLOPT_TRANSFERTEXT, 0);
+	qcurl_easy_setopt(clc.downloadCURL, CURLOPT_REFERER, va("ioQ3://%s",
+		NET_AdrToString(clc.serverAddress)));
+	qcurl_easy_setopt(clc.downloadCURL, CURLOPT_USERAGENT, va("%s %s",
+		Q3_VERSION, qcurl_version()));
+	qcurl_easy_setopt(clc.downloadCURL, CURLOPT_WRITEFUNCTION,
+		CL_cURL_CallbackWrite);
+	qcurl_easy_setopt(clc.downloadCURL, CURLOPT_WRITEDATA, &clc.download);
+	qcurl_easy_setopt(clc.downloadCURL, CURLOPT_NOPROGRESS, 0);
+	qcurl_easy_setopt(clc.downloadCURL, CURLOPT_PROGRESSFUNCTION,
+		CL_cURL_CallbackProgress);
+	qcurl_easy_setopt(clc.downloadCURL, CURLOPT_PROGRESSDATA, NULL);
+	qcurl_easy_setopt(clc.downloadCURL, CURLOPT_FAILONERROR, 1);
+	qcurl_easy_setopt(clc.downloadCURL, CURLOPT_FOLLOWLOCATION, 1);
+	qcurl_easy_setopt(clc.downloadCURL, CURLOPT_MAXREDIRS, 5);
+	clc.downloadCURLM = qcurl_multi_init();	
+	if(!clc.downloadCURLM) {
+		qcurl_easy_cleanup(clc.downloadCURL);
+		clc.downloadCURL = NULL;
+		Com_Error(ERR_DROP, "CL_cURL_BeginDownload: qcurl_multi_init() "
+			"failed\n");
+		return;
+	}
+	qcurl_multi_add_handle(clc.downloadCURLM, clc.downloadCURL);
+
+	if(!(clc.sv_allowDownload & DLF_NO_DISCONNECT) &&
+		!clc.cURLDisconnected) {
+
+		CL_AddReliableCommand("disconnect");
+		CL_WritePacket();
+		CL_WritePacket();
+		CL_WritePacket();
+		clc.cURLDisconnected = qtrue;
+	}
+}
+
+void CL_cURL_PerformDownload(void)
+{
+	CURLMcode res;
+	CURLMsg *msg;
+	int c;
+	int i = 0;
+
+	res = qcurl_multi_perform(clc.downloadCURLM, &c);
+	while(res == CURLM_CALL_MULTI_PERFORM && i < 100) {
+		res = qcurl_multi_perform(clc.downloadCURLM, &c);
+		i++;
+	}
+	if(res == CURLM_CALL_MULTI_PERFORM)
+		return;
+	msg = qcurl_multi_info_read(clc.downloadCURLM, &c);
+	if(msg == NULL) {
+		return;
+	}
+	FS_FCloseFile(clc.download);
+	if(msg->msg == CURLMSG_DONE && msg->data.result == CURLE_OK) {
+		FS_SV_Rename(clc.downloadTempName, clc.downloadName);
+		clc.downloadRestart = qtrue;
+	}
+	else {
+		long code;
+
+		qcurl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE,
+			&code);	
+		Com_Error(ERR_DROP, "Download Error: %s Code: %ld URL: %s",
+			qcurl_easy_strerror(msg->data.result),
+			code, clc.downloadURL);
+	}
+	*clc.downloadTempName = *clc.downloadName = 0;
+	Cvar_Set( "cl_downloadName", "" );
+	CL_NextDownload();
+}
+#endif /* USE_CURL */

src/client/cl_curl.h

@@ -0,0 +1,101 @@
+/*
+===========================================================================
+Copyright (C) 2006 Tony J. White (tjw@tjw.org)
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+
+#ifndef __QCURL_H__
+#define __QCURL_H__
+
+extern cvar_t *cl_cURLLib;
+
+#include "../qcommon/q_shared.h"
+#include "../qcommon/qcommon.h"
+
+#ifdef WIN32
+#define DEFAULT_CURL_LIB "libcurl-3.dll"
+#elif defined(MACOS_X)
+#define DEFAULT_CURL_LIB "libcurl.dylib"
+#else
+#define DEFAULT_CURL_LIB "libcurl.so.3"
+#endif
+
+#if USE_LOCAL_HEADERS
+  #include "../libcurl/curl/curl.h"
+#else
+  #include <curl/curl.h>
+#endif
+
+
+#if USE_CURL_DLOPEN
+extern char* (*qcurl_version)(void);
+
+extern CURL* (*qcurl_easy_init)(void);
+extern CURLcode (*qcurl_easy_setopt)(CURL *curl, CURLoption option, ...);
+extern CURLcode (*qcurl_easy_perform)(CURL *curl);
+extern void (*qcurl_easy_cleanup)(CURL *curl);
+extern CURLcode (*qcurl_easy_getinfo)(CURL *curl, CURLINFO info, ...);
+extern void (*qcurl_easy_reset)(CURL *curl);
+extern const char *(*qcurl_easy_strerror)(CURLcode);
+
+extern CURLM* (*qcurl_multi_init)(void);
+extern CURLMcode (*qcurl_multi_add_handle)(CURLM *multi_handle,
+						CURL *curl_handle);
+extern CURLMcode (*qcurl_multi_remove_handle)(CURLM *multi_handle,
+						CURL *curl_handle);
+extern CURLMcode (*qcurl_multi_fdset)(CURLM *multi_handle,
+						fd_set *read_fd_set,
+						fd_set *write_fd_set,
+						fd_set *exc_fd_set,
+						int *max_fd);
+extern CURLMcode (*qcurl_multi_perform)(CURLM *multi_handle,
+						int *running_handles);
+extern CURLMcode (*qcurl_multi_cleanup)(CURLM *multi_handle);
+extern CURLMsg *(*qcurl_multi_info_read)(CURLM *multi_handle,
+						int *msgs_in_queue);
+extern const char *(*qcurl_multi_strerror)(CURLMcode);
+#else
+#define qcurl_version curl_version
+
+#define qcurl_easy_init curl_easy_init
+#define qcurl_easy_setopt curl_easy_setopt
+#define qcurl_easy_perform curl_easy_perform
+#define qcurl_easy_cleanup curl_easy_cleanup
+#define qcurl_easy_getinfo curl_easy_getinfo
+#define qcurl_easy_duphandle curl_easy_duphandle
+#define qcurl_easy_reset curl_easy_reset
+#define qcurl_easy_strerror curl_easy_strerror
+
+#define qcurl_multi_init curl_multi_init
+#define qcurl_multi_add_handle curl_multi_add_handle
+#define qcurl_multi_remove_handle curl_multi_remove_handle
+#define qcurl_multi_fdset curl_multi_fdset
+#define qcurl_multi_perform curl_multi_perform
+#define qcurl_multi_cleanup curl_multi_cleanup
+#define qcurl_multi_info_read curl_multi_info_read
+#define qcurl_multi_strerror curl_multi_strerror
+#endif
+
+qboolean CL_cURL_Init( void );
+void CL_cURL_Shutdown( void );
+void CL_cURL_BeginDownload( const char *localName, const char *remoteURL );
+void CL_cURL_PerformDownload( void );
+void CL_cURL_Cleanup( void );
+#endif	// __QCURL_H__

src/client/cl_input.c

@@ -0,0 +1,903 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+// cl.input.c  -- builds an intended movement command to send to the server
+
+#include "client.h"
+
+unsigned	frame_msec;
+int			old_com_frameTime;
+
+/*
+===============================================================================
+
+KEY BUTTONS
+
+Continuous button event tracking is complicated by the fact that two different
+input sources (say, mouse button 1 and the control key) can both press the
+same button, but the button should only be released when both of the
+pressing key have been released.
+
+When a key event issues a button command (+forward, +attack, etc), it appends
+its key number as argv(1) so it can be matched up with the release.
+
+argv(2) will be set to the time the event happened, which allows exact
+control even at low framerates when the down and up events may both get qued
+at the same time.
+
+===============================================================================
+*/
+
+
+kbutton_t	in_left, in_right, in_forward, in_back;
+kbutton_t	in_lookup, in_lookdown, in_moveleft, in_moveright;
+kbutton_t	in_strafe, in_speed;
+kbutton_t	in_up, in_down;
+
+kbutton_t	in_buttons[16];
+
+
+qboolean	in_mlooking;
+
+
+void IN_MLookDown( void ) {
+	in_mlooking = qtrue;
+}
+
+void IN_MLookUp( void ) {
+	in_mlooking = qfalse;
+	if ( !cl_freelook->integer ) {
+		IN_CenterView ();
+	}
+}
+
+void IN_KeyDown( kbutton_t *b ) {
+	int		k;
+	char	*c;
+	
+	c = Cmd_Argv(1);
+	if ( c[0] ) {
+		k = atoi(c);
+	} else {
+		k = -1;		// typed manually at the console for continuous down
+	}
+
+	if ( k == b->down[0] || k == b->down[1] ) {
+		return;		// repeating key
+	}
+	
+	if ( !b->down[0] ) {
+		b->down[0] = k;
+	} else if ( !b->down[1] ) {
+		b->down[1] = k;
+	} else {
+		Com_Printf ("Three keys down for a button!\n");
+		return;
+	}
+	
+	if ( b->active ) {
+		return;		// still down
+	}
+
+	// save timestamp for partial frame summing
+	c = Cmd_Argv(2);
+	b->downtime = atoi(c);
+
+	b->active = qtrue;
+	b->wasPressed = qtrue;
+}
+
+void IN_KeyUp( kbutton_t *b ) {
+	int		k;
+	char	*c;
+	unsigned	uptime;
+
+	c = Cmd_Argv(1);
+	if ( c[0] ) {
+		k = atoi(c);
+	} else {
+		// typed manually at the console, assume for unsticking, so clear all
+		b->down[0] = b->down[1] = 0;
+		b->active = qfalse;
+		return;
+	}
+
+	if ( b->down[0] == k ) {
+		b->down[0] = 0;
+	} else if ( b->down[1] == k ) {
+		b->down[1] = 0;
+	} else {
+		return;		// key up without coresponding down (menu pass through)
+	}
+	if ( b->down[0] || b->down[1] ) {
+		return;		// some other key is still holding it down
+	}
+
+	b->active = qfalse;
+
+	// save timestamp for partial frame summing
+	c = Cmd_Argv(2);
+	uptime = atoi(c);
+	if ( uptime ) {
+		b->msec += uptime - b->downtime;
+	} else {
+		b->msec += frame_msec / 2;
+	}
+
+	b->active = qfalse;
+}
+
+
+
+/*
+===============
+CL_KeyState
+
+Returns the fraction of the frame that the key was down
+===============
+*/
+float CL_KeyState( kbutton_t *key ) {
+	float		val;
+	int			msec;
+
+	msec = key->msec;
+	key->msec = 0;
+
+	if ( key->active ) {
+		// still down
+		if ( !key->downtime ) {
+			msec = com_frameTime;
+		} else {
+			msec += com_frameTime - key->downtime;
+		}
+		key->downtime = com_frameTime;
+	}
+
+#if 0
+	if (msec) {
+		Com_Printf ("%i ", msec);
+	}
+#endif
+
+	val = (float)msec / frame_msec;
+	if ( val < 0 ) {
+		val = 0;
+	}
+	if ( val > 1 ) {
+		val = 1;
+	}
+
+	return val;
+}
+
+
+
+void IN_UpDown(void) {IN_KeyDown(&in_up);}
+void IN_UpUp(void) {IN_KeyUp(&in_up);}
+void IN_DownDown(void) {IN_KeyDown(&in_down);}
+void IN_DownUp(void) {IN_KeyUp(&in_down);}
+void IN_LeftDown(void) {IN_KeyDown(&in_left);}
+void IN_LeftUp(void) {IN_KeyUp(&in_left);}
+void IN_RightDown(void) {IN_KeyDown(&in_right);}
+void IN_RightUp(void) {IN_KeyUp(&in_right);}
+void IN_ForwardDown(void) {IN_KeyDown(&in_forward);}
+void IN_ForwardUp(void) {IN_KeyUp(&in_forward);}
+void IN_BackDown(void) {IN_KeyDown(&in_back);}
+void IN_BackUp(void) {IN_KeyUp(&in_back);}
+void IN_LookupDown(void) {IN_KeyDown(&in_lookup);}
+void IN_LookupUp(void) {IN_KeyUp(&in_lookup);}
+void IN_LookdownDown(void) {IN_KeyDown(&in_lookdown);}
+void IN_LookdownUp(void) {IN_KeyUp(&in_lookdown);}
+void IN_MoveleftDown(void) {IN_KeyDown(&in_moveleft);}
+void IN_MoveleftUp(void) {IN_KeyUp(&in_moveleft);}
+void IN_MoverightDown(void) {IN_KeyDown(&in_moveright);}
+void IN_MoverightUp(void) {IN_KeyUp(&in_moveright);}
+
+void IN_SpeedDown(void) {IN_KeyDown(&in_speed);}
+void IN_SpeedUp(void) {IN_KeyUp(&in_speed);}
+void IN_StrafeDown(void) {IN_KeyDown(&in_strafe);}
+void IN_StrafeUp(void) {IN_KeyUp(&in_strafe);}
+
+void IN_Button0Down(void) {IN_KeyDown(&in_buttons[0]);}
+void IN_Button0Up(void) {IN_KeyUp(&in_buttons[0]);}
+void IN_Button1Down(void) {IN_KeyDown(&in_buttons[1]);}
+void IN_Button1Up(void) {IN_KeyUp(&in_buttons[1]);}
+void IN_Button2Down(void) {IN_KeyDown(&in_buttons[2]);}
+void IN_Button2Up(void) {IN_KeyUp(&in_buttons[2]);}
+void IN_Button3Down(void) {IN_KeyDown(&in_buttons[3]);}
+void IN_Button3Up(void) {IN_KeyUp(&in_buttons[3]);}
+void IN_Button4Down(void) {IN_KeyDown(&in_buttons[4]);}
+void IN_Button4Up(void) {IN_KeyUp(&in_buttons[4]);}
+void IN_Button5Down(void) {IN_KeyDown(&in_buttons[5]);}
+void IN_Button5Up(void) {IN_KeyUp(&in_buttons[5]);}
+void IN_Button6Down(void) {IN_KeyDown(&in_buttons[6]);}
+void IN_Button6Up(void) {IN_KeyUp(&in_buttons[6]);}
+void IN_Button7Down(void) {IN_KeyDown(&in_buttons[7]);}
+void IN_Button7Up(void) {IN_KeyUp(&in_buttons[7]);}
+void IN_Button8Down(void) {IN_KeyDown(&in_buttons[8]);}
+void IN_Button8Up(void) {IN_KeyUp(&in_buttons[8]);}
+void IN_Button9Down(void) {IN_KeyDown(&in_buttons[9]);}
+void IN_Button9Up(void) {IN_KeyUp(&in_buttons[9]);}
+void IN_Button10Down(void) {IN_KeyDown(&in_buttons[10]);}
+void IN_Button10Up(void) {IN_KeyUp(&in_buttons[10]);}
+void IN_Button11Down(void) {IN_KeyDown(&in_buttons[11]);}
+void IN_Button11Up(void) {IN_KeyUp(&in_buttons[11]);}
+void IN_Button12Down(void) {IN_KeyDown(&in_buttons[12]);}
+void IN_Button12Up(void) {IN_KeyUp(&in_buttons[12]);}
+void IN_Button13Down(void) {IN_KeyDown(&in_buttons[13]);}
+void IN_Button13Up(void) {IN_KeyUp(&in_buttons[13]);}
+void IN_Button14Down(void) {IN_KeyDown(&in_buttons[14]);}
+void IN_Button14Up(void) {IN_KeyUp(&in_buttons[14]);}
+void IN_Button15Down(void) {IN_KeyDown(&in_buttons[15]);}
+void IN_Button15Up(void) {IN_KeyUp(&in_buttons[15]);}
+
+void IN_ButtonDown (void) {
+	IN_KeyDown(&in_buttons[1]);}
+void IN_ButtonUp (void) {
+	IN_KeyUp(&in_buttons[1]);}
+
+void IN_CenterView (void) {
+	cl.viewangles[PITCH] = -SHORT2ANGLE(cl.snap.ps.delta_angles[PITCH]);
+}
+
+
+//==========================================================================
+
+cvar_t	*cl_upspeed;
+cvar_t	*cl_forwardspeed;
+cvar_t	*cl_sidespeed;
+
+cvar_t	*cl_yawspeed;
+cvar_t	*cl_pitchspeed;
+
+cvar_t	*cl_run;
+
+cvar_t	*cl_anglespeedkey;
+
+
+/*
+================
+CL_AdjustAngles
+
+Moves the local angle positions
+================
+*/
+void CL_AdjustAngles( void ) {
+	float	speed;
+	
+	if ( in_speed.active ) {
+		speed = 0.001 * cls.frametime * cl_anglespeedkey->value;
+	} else {
+		speed = 0.001 * cls.frametime;
+	}
+
+	if ( !in_strafe.active ) {
+		cl.viewangles[YAW] -= speed*cl_yawspeed->value*CL_KeyState (&in_right);
+		cl.viewangles[YAW] += speed*cl_yawspeed->value*CL_KeyState (&in_left);
+	}
+
+	cl.viewangles[PITCH] -= speed*cl_pitchspeed->value * CL_KeyState (&in_lookup);
+	cl.viewangles[PITCH] += speed*cl_pitchspeed->value * CL_KeyState (&in_lookdown);
+}
+
+/*
+================
+CL_KeyMove
+
+Sets the usercmd_t based on key states
+================
+*/
+void CL_KeyMove( usercmd_t *cmd ) {
+	int		movespeed;
+	int		forward, side, up;
+
+	//
+	// adjust for speed key / running
+	// the walking flag is to keep animations consistant
+	// even during acceleration and develeration
+	//
+	if ( in_speed.active ^ cl_run->integer ) {
+		movespeed = 127;
+		cmd->buttons &= ~BUTTON_WALKING;
+	} else {
+		cmd->buttons |= BUTTON_WALKING;
+		movespeed = 64;
+	}
+
+	forward = 0;
+	side = 0;
+	up = 0;
+	if ( in_strafe.active ) {
+		side += movespeed * CL_KeyState (&in_right);
+		side -= movespeed * CL_KeyState (&in_left);
+	}
+
+	side += movespeed * CL_KeyState (&in_moveright);
+	side -= movespeed * CL_KeyState (&in_moveleft);
+
+
+	up += movespeed * CL_KeyState (&in_up);
+	up -= movespeed * CL_KeyState (&in_down);
+
+	forward += movespeed * CL_KeyState (&in_forward);
+	forward -= movespeed * CL_KeyState (&in_back);
+
+	cmd->forwardmove = ClampChar( forward );
+	cmd->rightmove = ClampChar( side );
+	cmd->upmove = ClampChar( up );
+}
+
+/*
+=================
+CL_MouseEvent
+=================
+*/
+void CL_MouseEvent( int dx, int dy, int time ) {
+	if ( cls.keyCatchers & KEYCATCH_UI ) {
+		VM_Call( uivm, UI_MOUSE_EVENT, dx, dy );
+	} else if (cls.keyCatchers & KEYCATCH_CGAME) {
+		VM_Call (cgvm, CG_MOUSE_EVENT, dx, dy);
+	} else {
+		cl.mouseDx[cl.mouseIndex] += dx;
+		cl.mouseDy[cl.mouseIndex] += dy;
+	}
+}
+
+/*
+=================
+CL_JoystickEvent
+
+Joystick values stay set until changed
+=================
+*/
+void CL_JoystickEvent( int axis, int value, int time ) {
+	if ( axis < 0 || axis >= MAX_JOYSTICK_AXIS ) {
+		Com_Error( ERR_DROP, "CL_JoystickEvent: bad axis %i", axis );
+	}
+	cl.joystickAxis[axis] = value;
+}
+
+/*
+=================
+CL_JoystickMove
+=================
+*/
+void CL_JoystickMove( usercmd_t *cmd ) {
+	int		movespeed;
+	float	anglespeed;
+
+	if ( in_speed.active ^ cl_run->integer ) {
+		movespeed = 2;
+	} else {
+		movespeed = 1;
+		cmd->buttons |= BUTTON_WALKING;
+	}
+
+	if ( in_speed.active ) {
+		anglespeed = 0.001 * cls.frametime * cl_anglespeedkey->value;
+	} else {
+		anglespeed = 0.001 * cls.frametime;
+	}
+
+	if ( !in_strafe.active ) {
+		cl.viewangles[YAW] += anglespeed * cl_yawspeed->value * cl.joystickAxis[AXIS_SIDE];
+	} else {
+		cmd->rightmove = ClampChar( cmd->rightmove + cl.joystickAxis[AXIS_SIDE] );
+	}
+
+	if ( in_mlooking ) {
+		cl.viewangles[PITCH] += anglespeed * cl_pitchspeed->value * cl.joystickAxis[AXIS_FORWARD];
+	} else {
+		cmd->forwardmove = ClampChar( cmd->forwardmove + cl.joystickAxis[AXIS_FORWARD] );
+	}
+
+	cmd->upmove = ClampChar( cmd->upmove + cl.joystickAxis[AXIS_UP] );
+}
+
+/*
+=================
+CL_MouseMove
+=================
+*/
+void CL_MouseMove( usercmd_t *cmd ) {
+	float	mx, my;
+	float	accelSensitivity;
+	float	rate;
+
+	// allow mouse smoothing
+	if ( m_filter->integer ) {
+		mx = ( cl.mouseDx[0] + cl.mouseDx[1] ) * 0.5;
+		my = ( cl.mouseDy[0] + cl.mouseDy[1] ) * 0.5;
+	} else {
+		mx = cl.mouseDx[cl.mouseIndex];
+		my = cl.mouseDy[cl.mouseIndex];
+	}
+	cl.mouseIndex ^= 1;
+	cl.mouseDx[cl.mouseIndex] = 0;
+	cl.mouseDy[cl.mouseIndex] = 0;
+
+	rate = sqrt( mx * mx + my * my ) / (float)frame_msec;
+	accelSensitivity = ( cl_sensitivity->value *
+			cl_platformSensitivity->value ) + rate * cl_mouseAccel->value;
+
+	// scale by FOV
+	accelSensitivity *= cl.cgameSensitivity;
+
+	if ( rate && cl_showMouseRate->integer ) {
+		Com_Printf( "%f : %f\n", rate, accelSensitivity );
+	}
+
+	mx *= accelSensitivity;
+	my *= accelSensitivity;
+
+	if (!mx && !my) {
+		return;
+	}
+
+	// add mouse X/Y movement to cmd
+	if ( in_strafe.active ) {
+		cmd->rightmove = ClampChar( cmd->rightmove + m_side->value * mx );
+	} else {
+		cl.viewangles[YAW] -= m_yaw->value * mx;
+	}
+
+	if ( (in_mlooking || cl_freelook->integer) && !in_strafe.active ) {
+		cl.viewangles[PITCH] += m_pitch->value * my;
+	} else {
+		cmd->forwardmove = ClampChar( cmd->forwardmove - m_forward->value * my );
+	}
+}
+
+
+/*
+==============
+CL_CmdButtons
+==============
+*/
+void CL_CmdButtons( usercmd_t *cmd ) {
+	int		i;
+
+	//
+	// figure button bits
+	// send a button bit even if the key was pressed and released in
+	// less than a frame
+	//	
+	for (i = 0 ; i < 15 ; i++) {
+		if ( in_buttons[i].active || in_buttons[i].wasPressed ) {
+			cmd->buttons |= 1 << i;
+		}
+		in_buttons[i].wasPressed = qfalse;
+	}
+
+	if ( cls.keyCatchers ) {
+		cmd->buttons |= BUTTON_TALK;
+	}
+
+	// allow the game to know if any key at all is
+	// currently pressed, even if it isn't bound to anything
+	if ( anykeydown && !cls.keyCatchers ) {
+		cmd->buttons |= BUTTON_ANY;
+	}
+}
+
+
+/*
+==============
+CL_FinishMove
+==============
+*/
+void CL_FinishMove( usercmd_t *cmd ) {
+	int		i;
+
+	// copy the state that the cgame is currently sending
+	cmd->weapon = cl.cgameUserCmdValue;
+
+	// send the current server time so the amount of movement
+	// can be determined without allowing cheating
+	cmd->serverTime = cl.serverTime;
+
+	for (i=0 ; i<3 ; i++) {
+		cmd->angles[i] = ANGLE2SHORT(cl.viewangles[i]);
+	}
+}
+
+
+/*
+=================
+CL_CreateCmd
+=================
+*/
+usercmd_t CL_CreateCmd( void ) {
+	usercmd_t	cmd;
+	vec3_t		oldAngles;
+
+	VectorCopy( cl.viewangles, oldAngles );
+
+	// keyboard angle adjustment
+	CL_AdjustAngles ();
+	
+	Com_Memset( &cmd, 0, sizeof( cmd ) );
+
+	CL_CmdButtons( &cmd );
+
+	// get basic movement from keyboard
+	CL_KeyMove( &cmd );
+
+	// get basic movement from mouse
+	CL_MouseMove( &cmd );
+
+	// get basic movement from joystick
+	CL_JoystickMove( &cmd );
+
+	// check to make sure the angles haven't wrapped
+	if ( cl.viewangles[PITCH] - oldAngles[PITCH] > 90 ) {
+		cl.viewangles[PITCH] = oldAngles[PITCH] + 90;
+	} else if ( oldAngles[PITCH] - cl.viewangles[PITCH] > 90 ) {
+		cl.viewangles[PITCH] = oldAngles[PITCH] - 90;
+	} 
+
+	// store out the final values
+	CL_FinishMove( &cmd );
+
+	// draw debug graphs of turning for mouse testing
+	if ( cl_debugMove->integer ) {
+		if ( cl_debugMove->integer == 1 ) {
+			SCR_DebugGraph( abs(cl.viewangles[YAW] - oldAngles[YAW]), 0 );
+		}
+		if ( cl_debugMove->integer == 2 ) {
+			SCR_DebugGraph( abs(cl.viewangles[PITCH] - oldAngles[PITCH]), 0 );
+		}
+	}
+
+	return cmd;
+}
+
+
+/*
+=================
+CL_CreateNewCommands
+
+Create a new usercmd_t structure for this frame
+=================
+*/
+void CL_CreateNewCommands( void ) {
+	usercmd_t	*cmd;
+	int			cmdNum;
+
+	// no need to create usercmds until we have a gamestate
+	if ( cls.state < CA_PRIMED ) {
+		return;
+	}
+
+	frame_msec = com_frameTime - old_com_frameTime;
+
+	// if running less than 5fps, truncate the extra time to prevent
+	// unexpected moves after a hitch
+	if ( frame_msec > 200 ) {
+		frame_msec = 200;
+	}
+	old_com_frameTime = com_frameTime;
+
+
+	// generate a command for this frame
+	cl.cmdNumber++;
+	cmdNum = cl.cmdNumber & CMD_MASK;
+	cl.cmds[cmdNum] = CL_CreateCmd ();
+	cmd = &cl.cmds[cmdNum];
+}
+
+/*
+=================
+CL_ReadyToSendPacket
+
+Returns qfalse if we are over the maxpackets limit
+and should choke back the bandwidth a bit by not sending
+a packet this frame.  All the commands will still get
+delivered in the next packet, but saving a header and
+getting more delta compression will reduce total bandwidth.
+=================
+*/
+qboolean CL_ReadyToSendPacket( void ) {
+	int		oldPacketNum;
+	int		delta;
+
+	// don't send anything if playing back a demo
+	if ( clc.demoplaying || cls.state == CA_CINEMATIC ) {
+		return qfalse;
+	}
+
+	// If we are downloading, we send no less than 50ms between packets
+	if ( *clc.downloadTempName &&
+		cls.realtime - clc.lastPacketSentTime < 50 ) {
+		return qfalse;
+	}
+
+	// if we don't have a valid gamestate yet, only send
+	// one packet a second
+	if ( cls.state != CA_ACTIVE && 
+		cls.state != CA_PRIMED && 
+		!*clc.downloadTempName &&
+		cls.realtime - clc.lastPacketSentTime < 1000 ) {
+		return qfalse;
+	}
+
+	// send every frame for loopbacks
+	if ( clc.netchan.remoteAddress.type == NA_LOOPBACK ) {
+		return qtrue;
+	}
+
+	// send every frame for LAN
+	if ( cl_lanForcePackets->integer && Sys_IsLANAddress( clc.netchan.remoteAddress ) ) {
+		return qtrue;
+	}
+
+	// check for exceeding cl_maxpackets
+	if ( cl_maxpackets->integer < 15 ) {
+		Cvar_Set( "cl_maxpackets", "15" );
+	} else if ( cl_maxpackets->integer > 125 ) {
+		Cvar_Set( "cl_maxpackets", "125" );
+	}
+	oldPacketNum = (clc.netchan.outgoingSequence - 1) & PACKET_MASK;
+	delta = cls.realtime -  cl.outPackets[ oldPacketNum ].p_realtime;
+	if ( delta < 1000 / cl_maxpackets->integer ) {
+		// the accumulated commands will go out in the next packet
+		return qfalse;
+	}
+
+	return qtrue;
+}
+
+/*
+===================
+CL_WritePacket
+
+Create and send the command packet to the server
+Including both the reliable commands and the usercmds
+
+During normal gameplay, a client packet will contain something like:
+
+4	sequence number
+2	qport
+4	serverid
+4	acknowledged sequence number
+4	clc.serverCommandSequence
+<optional reliable commands>
+1	clc_move or clc_moveNoDelta
+1	command count
+<count * usercmds>
+
+===================
+*/
+void CL_WritePacket( void ) {
+	msg_t		buf;
+	byte		data[MAX_MSGLEN];
+	int			i, j;
+	usercmd_t	*cmd, *oldcmd;
+	usercmd_t	nullcmd;
+	int			packetNum;
+	int			oldPacketNum;
+	int			count, key;
+
+	// don't send anything if playing back a demo
+	if ( clc.demoplaying || cls.state == CA_CINEMATIC ) {
+		return;
+	}
+
+	Com_Memset( &nullcmd, 0, sizeof(nullcmd) );
+	oldcmd = &nullcmd;
+
+	MSG_Init( &buf, data, sizeof(data) );
+
+	MSG_Bitstream( &buf );
+	// write the current serverId so the server
+	// can tell if this is from the current gameState
+	MSG_WriteLong( &buf, cl.serverId );
+
+	// write the last message we received, which can
+	// be used for delta compression, and is also used
+	// to tell if we dropped a gamestate
+	MSG_WriteLong( &buf, clc.serverMessageSequence );
+
+	// write the last reliable message we received
+	MSG_WriteLong( &buf, clc.serverCommandSequence );
+
+	// write any unacknowledged clientCommands
+	for ( i = clc.reliableAcknowledge + 1 ; i <= clc.reliableSequence ; i++ ) {
+		MSG_WriteByte( &buf, clc_clientCommand );
+		MSG_WriteLong( &buf, i );
+		MSG_WriteString( &buf, clc.reliableCommands[ i & (MAX_RELIABLE_COMMANDS-1) ] );
+	}
+
+	// we want to send all the usercmds that were generated in the last
+	// few packet, so even if a couple packets are dropped in a row,
+	// all the cmds will make it to the server
+	if ( cl_packetdup->integer < 0 ) {
+		Cvar_Set( "cl_packetdup", "0" );
+	} else if ( cl_packetdup->integer > 5 ) {
+		Cvar_Set( "cl_packetdup", "5" );
+	}
+	oldPacketNum = (clc.netchan.outgoingSequence - 1 - cl_packetdup->integer) & PACKET_MASK;
+	count = cl.cmdNumber - cl.outPackets[ oldPacketNum ].p_cmdNumber;
+	if ( count > MAX_PACKET_USERCMDS ) {
+		count = MAX_PACKET_USERCMDS;
+		Com_Printf("MAX_PACKET_USERCMDS\n");
+	}
+	if ( count >= 1 ) {
+		if ( cl_showSend->integer ) {
+			Com_Printf( "(%i)", count );
+		}
+
+		// begin a client move command
+		if ( cl_nodelta->integer || !cl.snap.valid || clc.demowaiting
+			|| clc.serverMessageSequence != cl.snap.messageNum ) {
+			MSG_WriteByte (&buf, clc_moveNoDelta);
+		} else {
+			MSG_WriteByte (&buf, clc_move);
+		}
+
+		// write the command count
+		MSG_WriteByte( &buf, count );
+
+		// use the checksum feed in the key
+		key = clc.checksumFeed;
+		// also use the message acknowledge
+		key ^= clc.serverMessageSequence;
+		// also use the last acknowledged server command in the key
+		key ^= Com_HashKey(clc.serverCommands[ clc.serverCommandSequence & (MAX_RELIABLE_COMMANDS-1) ], 32);
+
+		// write all the commands, including the predicted command
+		for ( i = 0 ; i < count ; i++ ) {
+			j = (cl.cmdNumber - count + i + 1) & CMD_MASK;
+			cmd = &cl.cmds[j];
+			MSG_WriteDeltaUsercmdKey (&buf, key, oldcmd, cmd);
+			oldcmd = cmd;
+		}
+	}
+
+	//
+	// deliver the message
+	//
+	packetNum = clc.netchan.outgoingSequence & PACKET_MASK;
+	cl.outPackets[ packetNum ].p_realtime = cls.realtime;
+	cl.outPackets[ packetNum ].p_serverTime = oldcmd->serverTime;
+	cl.outPackets[ packetNum ].p_cmdNumber = cl.cmdNumber;
+	clc.lastPacketSentTime = cls.realtime;
+
+	if ( cl_showSend->integer ) {
+		Com_Printf( "%i ", buf.cursize );
+	}
+
+	CL_Netchan_Transmit (&clc.netchan, &buf);	
+
+	// clients never really should have messages large enough
+	// to fragment, but in case they do, fire them all off
+	// at once
+	// TTimo: this causes a packet burst, which is bad karma for winsock
+	// added a WARNING message, we'll see if there are legit situations where this happens
+	while ( clc.netchan.unsentFragments ) {
+		Com_DPrintf( "WARNING: #462 unsent fragments (not supposed to happen!)\n" );
+		CL_Netchan_TransmitNextFragment( &clc.netchan );
+	}
+}
+
+/*
+=================
+CL_SendCmd
+
+Called every frame to builds and sends a command packet to the server.
+=================
+*/
+void CL_SendCmd( void ) {
+	// don't send any message if not connected
+	if ( cls.state < CA_CONNECTED ) {
+		return;
+	}
+
+	// don't send commands if paused
+	if ( com_sv_running->integer && sv_paused->integer && cl_paused->integer ) {
+		return;
+	}
+
+	// we create commands even if a demo is playing,
+	CL_CreateNewCommands();
+
+	// don't send a packet if the last packet was sent too recently
+	if ( !CL_ReadyToSendPacket() ) {
+		if ( cl_showSend->integer ) {
+			Com_Printf( ". " );
+		}
+		return;
+	}
+
+	CL_WritePacket();
+}
+
+/*
+============
+CL_InitInput
+============
+*/
+void CL_InitInput( void ) {
+	Cmd_AddCommand ("centerview",IN_CenterView);
+
+	Cmd_AddCommand ("+moveup",IN_UpDown);
+	Cmd_AddCommand ("-moveup",IN_UpUp);
+	Cmd_AddCommand ("+movedown",IN_DownDown);
+	Cmd_AddCommand ("-movedown",IN_DownUp);
+	Cmd_AddCommand ("+left",IN_LeftDown);
+	Cmd_AddCommand ("-left",IN_LeftUp);
+	Cmd_AddCommand ("+right",IN_RightDown);
+	Cmd_AddCommand ("-right",IN_RightUp);
+	Cmd_AddCommand ("+forward",IN_ForwardDown);
+	Cmd_AddCommand ("-forward",IN_ForwardUp);
+	Cmd_AddCommand ("+back",IN_BackDown);
+	Cmd_AddCommand ("-back",IN_BackUp);
+	Cmd_AddCommand ("+lookup", IN_LookupDown);
+	Cmd_AddCommand ("-lookup", IN_LookupUp);
+	Cmd_AddCommand ("+lookdown", IN_LookdownDown);
+	Cmd_AddCommand ("-lookdown", IN_LookdownUp);
+	Cmd_AddCommand ("+strafe", IN_StrafeDown);
+	Cmd_AddCommand ("-strafe", IN_StrafeUp);
+	Cmd_AddCommand ("+moveleft", IN_MoveleftDown);
+	Cmd_AddCommand ("-moveleft", IN_MoveleftUp);
+	Cmd_AddCommand ("+moveright", IN_MoverightDown);
+	Cmd_AddCommand ("-moveright", IN_MoverightUp);
+	Cmd_AddCommand ("+speed", IN_SpeedDown);
+	Cmd_AddCommand ("-speed", IN_SpeedUp);
+	Cmd_AddCommand ("+attack", IN_Button0Down);
+	Cmd_AddCommand ("-attack", IN_Button0Up);
+	Cmd_AddCommand ("+button0", IN_Button0Down);
+	Cmd_AddCommand ("-button0", IN_Button0Up);
+	Cmd_AddCommand ("+button1", IN_Button1Down);
+	Cmd_AddCommand ("-button1", IN_Button1Up);
+	Cmd_AddCommand ("+button2", IN_Button2Down);
+	Cmd_AddCommand ("-button2", IN_Button2Up);
+	Cmd_AddCommand ("+button3", IN_Button3Down);
+	Cmd_AddCommand ("-button3", IN_Button3Up);
+	Cmd_AddCommand ("+button4", IN_Button4Down);
+	Cmd_AddCommand ("-button4", IN_Button4Up);
+	Cmd_AddCommand ("+button5", IN_Button5Down);
+	Cmd_AddCommand ("-button5", IN_Button5Up);
+	Cmd_AddCommand ("+button6", IN_Button6Down);
+	Cmd_AddCommand ("-button6", IN_Button6Up);
+	Cmd_AddCommand ("+button7", IN_Button7Down);
+	Cmd_AddCommand ("-button7", IN_Button7Up);
+	Cmd_AddCommand ("+button8", IN_Button8Down);
+	Cmd_AddCommand ("-button8", IN_Button8Up);
+	Cmd_AddCommand ("+button9", IN_Button9Down);
+	Cmd_AddCommand ("-button9", IN_Button9Up);
+	Cmd_AddCommand ("+button10", IN_Button10Down);
+	Cmd_AddCommand ("-button10", IN_Button10Up);
+	Cmd_AddCommand ("+button11", IN_Button11Down);
+	Cmd_AddCommand ("-button11", IN_Button11Up);
+	Cmd_AddCommand ("+button12", IN_Button12Down);
+	Cmd_AddCommand ("-button12", IN_Button12Up);
+	Cmd_AddCommand ("+button13", IN_Button13Down);
+	Cmd_AddCommand ("-button13", IN_Button13Up);
+	Cmd_AddCommand ("+button14", IN_Button14Down);
+	Cmd_AddCommand ("-button14", IN_Button14Up);
+	Cmd_AddCommand ("+mlook", IN_MLookDown);
+	Cmd_AddCommand ("-mlook", IN_MLookUp);
+
+	cl_nodelta = Cvar_Get ("cl_nodelta", "0", 0);
+	cl_debugMove = Cvar_Get ("cl_debugMove", "0", 0);
+}

src/client/cl_net_chan.c

@@ -0,0 +1,168 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+#include "../qcommon/q_shared.h"
+#include "../qcommon/qcommon.h"
+#include "client.h"
+
+/*
+==============
+CL_Netchan_Encode
+
+	// first 12 bytes of the data are always:
+	long serverId;
+	long messageAcknowledge;
+	long reliableAcknowledge;
+
+==============
+*/
+static void CL_Netchan_Encode( msg_t *msg ) {
+	int serverId, messageAcknowledge, reliableAcknowledge;
+	int i, index, srdc, sbit, soob;
+	byte key, *string;
+
+	if ( msg->cursize <= CL_ENCODE_START ) {
+		return;
+	}
+
+        srdc = msg->readcount;
+        sbit = msg->bit;
+        soob = msg->oob;
+        
+        msg->bit = 0;
+        msg->readcount = 0;
+        msg->oob = 0;
+        
+        serverId = MSG_ReadLong(msg);
+	messageAcknowledge = MSG_ReadLong(msg);
+	reliableAcknowledge = MSG_ReadLong(msg);
+
+        msg->oob = soob;
+        msg->bit = sbit;
+        msg->readcount = srdc;
+        
+	string = (byte *)clc.serverCommands[ reliableAcknowledge & (MAX_RELIABLE_COMMANDS-1) ];
+	index = 0;
+	//
+	key = clc.challenge ^ serverId ^ messageAcknowledge;
+	for (i = CL_ENCODE_START; i < msg->cursize; i++) {
+		// modify the key with the last received now acknowledged server command
+		if (!string[index])
+			index = 0;
+		if (string[index] > 127 || string[index] == '%') {
+			key ^= '.' << (i & 1);
+		}
+		else {
+			key ^= string[index] << (i & 1);
+		}
+		index++;
+		// encode the data with this key
+		*(msg->data + i) = (*(msg->data + i)) ^ key;
+	}
+}
+
+/*
+==============
+CL_Netchan_Decode
+
+	// first four bytes of the data are always:
+	long reliableAcknowledge;
+
+==============
+*/
+static void CL_Netchan_Decode( msg_t *msg ) {
+	long reliableAcknowledge, i, index;
+	byte key, *string;
+        int	srdc, sbit, soob;
+
+        srdc = msg->readcount;
+        sbit = msg->bit;
+        soob = msg->oob;
+        
+        msg->oob = 0;
+        
+	reliableAcknowledge = MSG_ReadLong(msg);
+
+        msg->oob = soob;
+        msg->bit = sbit;
+        msg->readcount = srdc;
+
+	string = (byte *) clc.reliableCommands[ reliableAcknowledge & (MAX_RELIABLE_COMMANDS-1) ];
+	index = 0;
+	// xor the client challenge with the netchan sequence number (need something that changes every message)
+	key = clc.challenge ^ LittleLong( *(unsigned *)msg->data );
+	for (i = msg->readcount + CL_DECODE_START; i < msg->cursize; i++) {
+		// modify the key with the last sent and with this message acknowledged client command
+		if (!string[index])
+			index = 0;
+		if (string[index] > 127 || string[index] == '%') {
+			key ^= '.' << (i & 1);
+		}
+		else {
+			key ^= string[index] << (i & 1);
+		}
+		index++;
+		// decode the data with this key
+		*(msg->data + i) = *(msg->data + i) ^ key;
+	}
+}
+
+/*
+=================
+CL_Netchan_TransmitNextFragment
+=================
+*/
+void CL_Netchan_TransmitNextFragment( netchan_t *chan ) {
+	Netchan_TransmitNextFragment( chan );
+}
+
+/*
+===============
+CL_Netchan_Transmit
+================
+*/
+void CL_Netchan_Transmit( netchan_t *chan, msg_t* msg ) {
+	MSG_WriteByte( msg, clc_EOF );
+
+	CL_Netchan_Encode( msg );
+	Netchan_Transmit( chan, msg->cursize, msg->data );
+}
+
+extern 	int oldsize;
+int newsize = 0;
+
+/*
+=================
+CL_Netchan_Process
+=================
+*/
+qboolean CL_Netchan_Process( netchan_t *chan, msg_t *msg ) {
+	int ret;
+
+	ret = Netchan_Process( chan, msg );
+	if (!ret)
+		return qfalse;
+	CL_Netchan_Decode( msg );
+	newsize += msg->cursize;
+	return qtrue;
+}

src/client/cl_parse.c

@@ -0,0 +1,722 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+// cl_parse.c  -- parse a message received from the server
+
+#include "client.h"
+
+char *svc_strings[256] = {
+	"svc_bad",
+
+	"svc_nop",
+	"svc_gamestate",
+	"svc_configstring",
+	"svc_baseline",	
+	"svc_serverCommand",
+	"svc_download",
+	"svc_snapshot"
+};
+
+void SHOWNET( msg_t *msg, char *s) {
+	if ( cl_shownet->integer >= 2) {
+		Com_Printf ("%3i:%s\n", msg->readcount-1, s);
+	}
+}
+
+
+/*
+=========================================================================
+
+MESSAGE PARSING
+
+=========================================================================
+*/
+
+/*
+==================
+CL_DeltaEntity
+
+Parses deltas from the given base and adds the resulting entity
+to the current frame
+==================
+*/
+void CL_DeltaEntity (msg_t *msg, clSnapshot_t *frame, int newnum, entityState_t *old, 
+					 qboolean unchanged) {
+	entityState_t	*state;
+
+	// save the parsed entity state into the big circular buffer so
+	// it can be used as the source for a later delta
+	state = &cl.parseEntities[cl.parseEntitiesNum & (MAX_PARSE_ENTITIES-1)];
+
+	if ( unchanged ) {
+		*state = *old;
+	} else {
+		MSG_ReadDeltaEntity( msg, old, state, newnum );
+	}
+
+	if ( state->number == (MAX_GENTITIES-1) ) {
+		return;		// entity was delta removed
+	}
+	cl.parseEntitiesNum++;
+	frame->numEntities++;
+}
+
+/*
+==================
+CL_ParsePacketEntities
+
+==================
+*/
+void CL_ParsePacketEntities( msg_t *msg, clSnapshot_t *oldframe, clSnapshot_t *newframe) {
+	int			newnum;
+	entityState_t	*oldstate;
+	int			oldindex, oldnum;
+
+	newframe->parseEntitiesNum = cl.parseEntitiesNum;
+	newframe->numEntities = 0;
+
+	// delta from the entities present in oldframe
+	oldindex = 0;
+	oldstate = NULL;
+	if (!oldframe) {
+		oldnum = 99999;
+	} else {
+		if ( oldindex >= oldframe->numEntities ) {
+			oldnum = 99999;
+		} else {
+			oldstate = &cl.parseEntities[
+				(oldframe->parseEntitiesNum + oldindex) & (MAX_PARSE_ENTITIES-1)];
+			oldnum = oldstate->number;
+		}
+	}
+
+	while ( 1 ) {
+		// read the entity index number
+		newnum = MSG_ReadBits( msg, GENTITYNUM_BITS );
+
+		if ( newnum == (MAX_GENTITIES-1) ) {
+			break;
+		}
+
+		if ( msg->readcount > msg->cursize ) {
+			Com_Error (ERR_DROP,"CL_ParsePacketEntities: end of message");
+		}
+
+		while ( oldnum < newnum ) {
+			// one or more entities from the old packet are unchanged
+			if ( cl_shownet->integer == 3 ) {
+				Com_Printf ("%3i:  unchanged: %i\n", msg->readcount, oldnum);
+			}
+			CL_DeltaEntity( msg, newframe, oldnum, oldstate, qtrue );
+			
+			oldindex++;
+
+			if ( oldindex >= oldframe->numEntities ) {
+				oldnum = 99999;
+			} else {
+				oldstate = &cl.parseEntities[
+					(oldframe->parseEntitiesNum + oldindex) & (MAX_PARSE_ENTITIES-1)];
+				oldnum = oldstate->number;
+			}
+		}
+		if (oldnum == newnum) {
+			// delta from previous state
+			if ( cl_shownet->integer == 3 ) {
+				Com_Printf ("%3i:  delta: %i\n", msg->readcount, newnum);
+			}
+			CL_DeltaEntity( msg, newframe, newnum, oldstate, qfalse );
+
+			oldindex++;
+
+			if ( oldindex >= oldframe->numEntities ) {
+				oldnum = 99999;
+			} else {
+				oldstate = &cl.parseEntities[
+					(oldframe->parseEntitiesNum + oldindex) & (MAX_PARSE_ENTITIES-1)];
+				oldnum = oldstate->number;
+			}
+			continue;
+		}
+
+		if ( oldnum > newnum ) {
+			// delta from baseline
+			if ( cl_shownet->integer == 3 ) {
+				Com_Printf ("%3i:  baseline: %i\n", msg->readcount, newnum);
+			}
+			CL_DeltaEntity( msg, newframe, newnum, &cl.entityBaselines[newnum], qfalse );
+			continue;
+		}
+
+	}
+
+	// any remaining entities in the old frame are copied over
+	while ( oldnum != 99999 ) {
+		// one or more entities from the old packet are unchanged
+		if ( cl_shownet->integer == 3 ) {
+			Com_Printf ("%3i:  unchanged: %i\n", msg->readcount, oldnum);
+		}
+		CL_DeltaEntity( msg, newframe, oldnum, oldstate, qtrue );
+		
+		oldindex++;
+
+		if ( oldindex >= oldframe->numEntities ) {
+			oldnum = 99999;
+		} else {
+			oldstate = &cl.parseEntities[
+				(oldframe->parseEntitiesNum + oldindex) & (MAX_PARSE_ENTITIES-1)];
+			oldnum = oldstate->number;
+		}
+	}
+}
+
+
+/*
+================
+CL_ParseSnapshot
+
+If the snapshot is parsed properly, it will be copied to
+cl.snap and saved in cl.snapshots[].  If the snapshot is invalid
+for any reason, no changes to the state will be made at all.
+================
+*/
+void CL_ParseSnapshot( msg_t *msg ) {
+	int			len;
+	clSnapshot_t	*old;
+	clSnapshot_t	newSnap;
+	int			deltaNum;
+	int			oldMessageNum;
+	int			i, packetNum;
+
+	// get the reliable sequence acknowledge number
+	// NOTE: now sent with all server to client messages
+	//clc.reliableAcknowledge = MSG_ReadLong( msg );
+
+	// read in the new snapshot to a temporary buffer
+	// we will only copy to cl.snap if it is valid
+	Com_Memset (&newSnap, 0, sizeof(newSnap));
+
+	// we will have read any new server commands in this
+	// message before we got to svc_snapshot
+	newSnap.serverCommandNum = clc.serverCommandSequence;
+
+	newSnap.serverTime = MSG_ReadLong( msg );
+
+	// if we were just unpaused, we can only *now* really let the
+	// change come into effect or the client hangs.
+	cl_paused->modified = 0;
+
+	newSnap.messageNum = clc.serverMessageSequence;
+
+	deltaNum = MSG_ReadByte( msg );
+	if ( !deltaNum ) {
+		newSnap.deltaNum = -1;
+	} else {
+		newSnap.deltaNum = newSnap.messageNum - deltaNum;
+	}
+	newSnap.snapFlags = MSG_ReadByte( msg );
+
+	// If the frame is delta compressed from data that we
+	// no longer have available, we must suck up the rest of
+	// the frame, but not use it, then ask for a non-compressed
+	// message 
+	if ( newSnap.deltaNum <= 0 ) {
+		newSnap.valid = qtrue;		// uncompressed frame
+		old = NULL;
+		clc.demowaiting = qfalse;	// we can start recording now
+	} else {
+		old = &cl.snapshots[newSnap.deltaNum & PACKET_MASK];
+		if ( !old->valid ) {
+			// should never happen
+			Com_Printf ("Delta from invalid frame (not supposed to happen!).\n");
+		} else if ( old->messageNum != newSnap.deltaNum ) {
+			// The frame that the server did the delta from
+			// is too old, so we can't reconstruct it properly.
+			Com_Printf ("Delta frame too old.\n");
+		} else if ( cl.parseEntitiesNum - old->parseEntitiesNum > MAX_PARSE_ENTITIES-128 ) {
+			Com_Printf ("Delta parseEntitiesNum too old.\n");
+		} else {
+			newSnap.valid = qtrue;	// valid delta parse
+		}
+	}
+
+	// read areamask
+	len = MSG_ReadByte( msg );
+	
+	if(len > sizeof(newSnap.areamask))
+	{
+		Com_Error (ERR_DROP,"CL_ParseSnapshot: Invalid size %d for areamask.", len);
+		return;
+	}
+	
+	MSG_ReadData( msg, &newSnap.areamask, len);
+
+	// read playerinfo
+	SHOWNET( msg, "playerstate" );
+	if ( old ) {
+		MSG_ReadDeltaPlayerstate( msg, &old->ps, &newSnap.ps );
+	} else {
+		MSG_ReadDeltaPlayerstate( msg, NULL, &newSnap.ps );
+	}
+
+	// read packet entities
+	SHOWNET( msg, "packet entities" );
+	CL_ParsePacketEntities( msg, old, &newSnap );
+
+	// if not valid, dump the entire thing now that it has
+	// been properly read
+	if ( !newSnap.valid ) {
+		return;
+	}
+
+	// clear the valid flags of any snapshots between the last
+	// received and this one, so if there was a dropped packet
+	// it won't look like something valid to delta from next
+	// time we wrap around in the buffer
+	oldMessageNum = cl.snap.messageNum + 1;
+
+	if ( newSnap.messageNum - oldMessageNum >= PACKET_BACKUP ) {
+		oldMessageNum = newSnap.messageNum - ( PACKET_BACKUP - 1 );
+	}
+	for ( ; oldMessageNum < newSnap.messageNum ; oldMessageNum++ ) {
+		cl.snapshots[oldMessageNum & PACKET_MASK].valid = qfalse;
+	}
+
+	// copy to the current good spot
+	cl.snap = newSnap;
+	cl.snap.ping = 999;
+	// calculate ping time
+	for ( i = 0 ; i < PACKET_BACKUP ; i++ ) {
+		packetNum = ( clc.netchan.outgoingSequence - 1 - i ) & PACKET_MASK;
+		if ( cl.snap.ps.commandTime >= cl.outPackets[ packetNum ].p_serverTime ) {
+			cl.snap.ping = cls.realtime - cl.outPackets[ packetNum ].p_realtime;
+			break;
+		}
+	}
+	// save the frame off in the backup array for later delta comparisons
+	cl.snapshots[cl.snap.messageNum & PACKET_MASK] = cl.snap;
+
+	if (cl_shownet->integer == 3) {
+		Com_Printf( "   snapshot:%i  delta:%i  ping:%i\n", cl.snap.messageNum,
+		cl.snap.deltaNum, cl.snap.ping );
+	}
+
+	cl.newSnapshots = qtrue;
+}
+
+
+//=====================================================================
+
+int cl_connectedToPureServer;
+int cl_connectedToCheatServer;
+
+/*
+==================
+CL_SystemInfoChanged
+
+The systeminfo configstring has been changed, so parse
+new information out of it.  This will happen at every
+gamestate, and possibly during gameplay.
+==================
+*/
+void CL_SystemInfoChanged( void ) {
+	char			*systemInfo;
+	const char		*s, *t;
+	char			key[BIG_INFO_KEY];
+	char			value[BIG_INFO_VALUE];
+	qboolean		gameSet;
+
+	systemInfo = cl.gameState.stringData + cl.gameState.stringOffsets[ CS_SYSTEMINFO ];
+	// NOTE TTimo:
+	// when the serverId changes, any further messages we send to the server will use this new serverId
+	// https://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=475
+	// in some cases, outdated cp commands might get sent with this news serverId
+	cl.serverId = atoi( Info_ValueForKey( systemInfo, "sv_serverid" ) );
+
+	// don't set any vars when playing a demo
+	if ( clc.demoplaying ) {
+		return;
+	}
+
+	s = Info_ValueForKey( systemInfo, "sv_cheats" );
+	cl_connectedToCheatServer = atoi( s );
+	if ( !cl_connectedToCheatServer ) {
+		Cvar_SetCheatState();
+	}
+
+	// check pure server string
+	s = Info_ValueForKey( systemInfo, "sv_paks" );
+	t = Info_ValueForKey( systemInfo, "sv_pakNames" );
+	FS_PureServerSetLoadedPaks( s, t );
+
+	s = Info_ValueForKey( systemInfo, "sv_referencedPaks" );
+	t = Info_ValueForKey( systemInfo, "sv_referencedPakNames" );
+	FS_PureServerSetReferencedPaks( s, t );
+
+	gameSet = qfalse;
+	// scan through all the variables in the systeminfo and locally set cvars to match
+	s = systemInfo;
+	while ( s ) {
+		int cvar_flags;
+		
+		Info_NextPair( &s, key, value );
+		if ( !key[0] ) {
+			break;
+		}
+		
+		// ehw!
+		if (!Q_stricmp(key, "fs_game"))
+		{
+			if(FS_CheckDirTraversal(value))
+			{
+				Com_Printf(S_COLOR_YELLOW "WARNING: Server sent invalid fs_game value %s\n", value);
+				continue;
+			}
+				
+			gameSet = qtrue;
+		}
+
+		if((cvar_flags = Cvar_Flags(key)) == CVAR_NONEXISTENT)
+			Cvar_Get(key, value, CVAR_SERVER_CREATED | CVAR_ROM);
+		else
+		{
+			// If this cvar may not be modified by a server discard the value.
+			if(!(cvar_flags & (CVAR_SYSTEMINFO | CVAR_SERVER_CREATED)))
+			{
+				Com_Printf(S_COLOR_YELLOW "WARNING: server is not allowed to set %s=%s\n", key, value);
+				continue;
+			}
+
+			Cvar_Set(key, value);
+		}
+	}
+	// if game folder should not be set and it is set at the client side
+	if ( !gameSet && *Cvar_VariableString("fs_game") ) {
+		Cvar_Set( "fs_game", "" );
+	}
+	cl_connectedToPureServer = Cvar_VariableValue( "sv_pure" );
+}
+
+/*
+==================
+CL_ParseServerInfo
+==================
+*/
+static void CL_ParseServerInfo(void)
+{
+	const char *serverInfo;
+
+	serverInfo = cl.gameState.stringData
+		+ cl.gameState.stringOffsets[ CS_SERVERINFO ];
+
+	clc.sv_allowDownload = atoi(Info_ValueForKey(serverInfo,
+		"sv_allowDownload"));
+	Q_strncpyz(clc.sv_dlURL,
+		Info_ValueForKey(serverInfo, "sv_dlURL"),
+		sizeof(clc.sv_dlURL));
+}
+
+/*
+==================
+CL_ParseGamestate
+==================
+*/
+void CL_ParseGamestate( msg_t *msg ) {
+	int				i;
+	entityState_t	*es;
+	int				newnum;
+	entityState_t	nullstate;
+	int				cmd;
+	char			*s;
+
+	Con_Close();
+
+	clc.connectPacketCount = 0;
+
+	// wipe local client state
+	CL_ClearState();
+
+	// a gamestate always marks a server command sequence
+	clc.serverCommandSequence = MSG_ReadLong( msg );
+
+	// parse all the configstrings and baselines
+	cl.gameState.dataCount = 1;	// leave a 0 at the beginning for uninitialized configstrings
+	while ( 1 ) {
+		cmd = MSG_ReadByte( msg );
+
+		if ( cmd == svc_EOF ) {
+			break;
+		}
+		
+		if ( cmd == svc_configstring ) {
+			int		len;
+
+			i = MSG_ReadShort( msg );
+			if ( i < 0 || i >= MAX_CONFIGSTRINGS ) {
+				Com_Error( ERR_DROP, "configstring > MAX_CONFIGSTRINGS" );
+			}
+			s = MSG_ReadBigString( msg );
+			len = strlen( s );
+
+			if ( len + 1 + cl.gameState.dataCount > MAX_GAMESTATE_CHARS ) {
+				Com_Error( ERR_DROP, "MAX_GAMESTATE_CHARS exceeded" );
+			}
+
+			// append it to the gameState string buffer
+			cl.gameState.stringOffsets[ i ] = cl.gameState.dataCount;
+			Com_Memcpy( cl.gameState.stringData + cl.gameState.dataCount, s, len + 1 );
+			cl.gameState.dataCount += len + 1;
+		} else if ( cmd == svc_baseline ) {
+			newnum = MSG_ReadBits( msg, GENTITYNUM_BITS );
+			if ( newnum < 0 || newnum >= MAX_GENTITIES ) {
+				Com_Error( ERR_DROP, "Baseline number out of range: %i", newnum );
+			}
+			Com_Memset (&nullstate, 0, sizeof(nullstate));
+			es = &cl.entityBaselines[ newnum ];
+			MSG_ReadDeltaEntity( msg, &nullstate, es, newnum );
+		} else {
+			Com_Error( ERR_DROP, "CL_ParseGamestate: bad command byte" );
+		}
+	}
+
+	clc.clientNum = MSG_ReadLong(msg);
+	// read the checksum feed
+	clc.checksumFeed = MSG_ReadLong( msg );
+
+	// parse useful values out of CS_SERVERINFO
+	CL_ParseServerInfo();
+
+	// parse serverId and other cvars
+	CL_SystemInfoChanged();
+
+	// stop recording now so the demo won't have an unnecessary level load at the end.
+	if(cl_autoRecordDemo->integer && clc.demorecording)
+		CL_StopRecord_f();
+	
+	// reinitialize the filesystem if the game directory has changed
+	FS_ConditionalRestart( clc.checksumFeed );
+
+	// This used to call CL_StartHunkUsers, but now we enter the download state before loading the
+	// cgame
+	CL_InitDownloads();
+
+	// make sure the game starts
+	Cvar_Set( "cl_paused", "0" );
+}
+
+
+//=====================================================================
+
+/*
+=====================
+CL_ParseDownload
+
+A download message has been received from the server
+=====================
+*/
+void CL_ParseDownload ( msg_t *msg ) {
+	int		size;
+	unsigned char data[MAX_MSGLEN];
+	int block;
+
+	if (!*clc.downloadTempName) {
+		Com_Printf("Server sending download, but no download was requested\n");
+		CL_AddReliableCommand( "stopdl" );
+		return;
+	}
+
+	// read the data
+	block = MSG_ReadShort ( msg );
+
+	if ( !block )
+	{
+		// block zero is special, contains file size
+		clc.downloadSize = MSG_ReadLong ( msg );
+
+		Cvar_SetValue( "cl_downloadSize", clc.downloadSize );
+
+		if (clc.downloadSize < 0)
+		{
+			Com_Error(ERR_DROP, MSG_ReadString( msg ) );
+			return;
+		}
+	}
+
+	size = MSG_ReadShort ( msg );
+	if (size < 0 || size > sizeof(data))
+	{
+		Com_Error(ERR_DROP, "CL_ParseDownload: Invalid size %d for download chunk.", size);
+		return;
+	}
+	
+	MSG_ReadData(msg, data, size);
+
+	if (clc.downloadBlock != block) {
+		Com_DPrintf( "CL_ParseDownload: Expected block %d, got %d\n", clc.downloadBlock, block);
+		return;
+	}
+
+	// open the file if not opened yet
+	if (!clc.download)
+	{
+		clc.download = FS_SV_FOpenFileWrite( clc.downloadTempName );
+
+		if (!clc.download) {
+			Com_Printf( "Could not create %s\n", clc.downloadTempName );
+			CL_AddReliableCommand( "stopdl" );
+			CL_NextDownload();
+			return;
+		}
+	}
+
+	if (size)
+		FS_Write( data, size, clc.download );
+
+	CL_AddReliableCommand( va("nextdl %d", clc.downloadBlock) );
+	clc.downloadBlock++;
+
+	clc.downloadCount += size;
+
+	// So UI gets access to it
+	Cvar_SetValue( "cl_downloadCount", clc.downloadCount );
+
+	if (!size) { // A zero length block means EOF
+		if (clc.download) {
+			FS_FCloseFile( clc.download );
+			clc.download = 0;
+
+			// rename the file
+			FS_SV_Rename ( clc.downloadTempName, clc.downloadName );
+		}
+		*clc.downloadTempName = *clc.downloadName = 0;
+		Cvar_Set( "cl_downloadName", "" );
+
+		// send intentions now
+		// We need this because without it, we would hold the last nextdl and then start
+		// loading right away.  If we take a while to load, the server is happily trying
+		// to send us that last block over and over.
+		// Write it twice to help make sure we acknowledge the download
+		CL_WritePacket();
+		CL_WritePacket();
+
+		// get another file if needed
+		CL_NextDownload ();
+	}
+}
+
+/*
+=====================
+CL_ParseCommandString
+
+Command strings are just saved off until cgame asks for them
+when it transitions a snapshot
+=====================
+*/
+void CL_ParseCommandString( msg_t *msg ) {
+	char	*s;
+	int		seq;
+	int		index;
+
+	seq = MSG_ReadLong( msg );
+	s = MSG_ReadString( msg );
+
+	// see if we have already executed stored it off
+	if ( clc.serverCommandSequence >= seq ) {
+		return;
+	}
+	clc.serverCommandSequence = seq;
+
+	index = seq & (MAX_RELIABLE_COMMANDS-1);
+	Q_strncpyz( clc.serverCommands[ index ], s, sizeof( clc.serverCommands[ index ] ) );
+}
+
+
+/*
+=====================
+CL_ParseServerMessage
+=====================
+*/
+void CL_ParseServerMessage( msg_t *msg ) {
+	int			cmd;
+
+	if ( cl_shownet->integer == 1 ) {
+		Com_Printf ("%i ",msg->cursize);
+	} else if ( cl_shownet->integer >= 2 ) {
+		Com_Printf ("------------------\n");
+	}
+
+	MSG_Bitstream(msg);
+
+	// get the reliable sequence acknowledge number
+	clc.reliableAcknowledge = MSG_ReadLong( msg );
+	// 
+	if ( clc.reliableAcknowledge < clc.reliableSequence - MAX_RELIABLE_COMMANDS ) {
+		clc.reliableAcknowledge = clc.reliableSequence;
+	}
+
+	//
+	// parse the message
+	//
+	while ( 1 ) {
+		if ( msg->readcount > msg->cursize ) {
+			Com_Error (ERR_DROP,"CL_ParseServerMessage: read past end of server message");
+			break;
+		}
+
+		cmd = MSG_ReadByte( msg );
+
+		if ( cmd == svc_EOF) {
+			SHOWNET( msg, "END OF MESSAGE" );
+			break;
+		}
+
+		if ( cl_shownet->integer >= 2 ) {
+			if ( !svc_strings[cmd] ) {
+				Com_Printf( "%3i:BAD CMD %i\n", msg->readcount-1, cmd );
+			} else {
+				SHOWNET( msg, svc_strings[cmd] );
+			}
+		}
+	
+	// other commands
+		switch ( cmd ) {
+		default:
+			Com_Error (ERR_DROP,"CL_ParseServerMessage: Illegible server message\n");
+			break;			
+		case svc_nop:
+			break;
+		case svc_serverCommand:
+			CL_ParseCommandString( msg );
+			break;
+		case svc_gamestate:
+			CL_ParseGamestate( msg );
+			break;
+		case svc_snapshot:
+			CL_ParseSnapshot( msg );
+			break;
+		case svc_download:
+			CL_ParseDownload( msg );
+			break;
+		}
+	}
+}
+
+

src/client/cl_scrn.c

@@ -0,0 +1,524 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+// cl_scrn.c -- master for refresh, status bar, console, chat, notify, etc
+
+#include "client.h"
+
+qboolean	scr_initialized;		// ready to draw
+
+cvar_t		*cl_timegraph;
+cvar_t		*cl_debuggraph;
+cvar_t		*cl_graphheight;
+cvar_t		*cl_graphscale;
+cvar_t		*cl_graphshift;
+
+/*
+================
+SCR_DrawNamedPic
+
+Coordinates are 640*480 virtual values
+=================
+*/
+void SCR_DrawNamedPic( float x, float y, float width, float height, const char *picname ) {
+	qhandle_t	hShader;
+
+	assert( width != 0 );
+
+	hShader = re.RegisterShader( picname );
+	SCR_AdjustFrom640( &x, &y, &width, &height );
+	re.DrawStretchPic( x, y, width, height, 0, 0, 1, 1, hShader );
+}
+
+
+/*
+================
+SCR_AdjustFrom640
+
+Adjusted for resolution and screen aspect ratio
+================
+*/
+void SCR_AdjustFrom640( float *x, float *y, float *w, float *h ) {
+	float	xscale;
+	float	yscale;
+
+#if 0
+		// adjust for wide screens
+		if ( cls.glconfig.vidWidth * 480 > cls.glconfig.vidHeight * 640 ) {
+			*x += 0.5 * ( cls.glconfig.vidWidth - ( cls.glconfig.vidHeight * 640 / 480 ) );
+		}
+#endif
+
+	// scale for screen sizes
+	xscale = cls.glconfig.vidWidth / 640.0;
+	yscale = cls.glconfig.vidHeight / 480.0;
+	if ( x ) {
+		*x *= xscale;
+	}
+	if ( y ) {
+		*y *= yscale;
+	}
+	if ( w ) {
+		*w *= xscale;
+	}
+	if ( h ) {
+		*h *= yscale;
+	}
+}
+
+/*
+================
+SCR_FillRect
+
+Coordinates are 640*480 virtual values
+=================
+*/
+void SCR_FillRect( float x, float y, float width, float height, const float *color ) {
+	re.SetColor( color );
+
+	SCR_AdjustFrom640( &x, &y, &width, &height );
+	re.DrawStretchPic( x, y, width, height, 0, 0, 0, 0, cls.whiteShader );
+
+	re.SetColor( NULL );
+}
+
+
+/*
+================
+SCR_DrawPic
+
+Coordinates are 640*480 virtual values
+=================
+*/
+void SCR_DrawPic( float x, float y, float width, float height, qhandle_t hShader ) {
+	SCR_AdjustFrom640( &x, &y, &width, &height );
+	re.DrawStretchPic( x, y, width, height, 0, 0, 1, 1, hShader );
+}
+
+
+
+/*
+** SCR_DrawChar
+** chars are drawn at 640*480 virtual screen size
+*/
+static void SCR_DrawChar( int x, int y, float size, int ch ) {
+	int row, col;
+	float frow, fcol;
+	float	ax, ay, aw, ah;
+
+	ch &= 255;
+
+	if ( ch == ' ' ) {
+		return;
+	}
+
+	if ( y < -size ) {
+		return;
+	}
+
+	ax = x;
+	ay = y;
+	aw = size;
+	ah = size;
+	SCR_AdjustFrom640( &ax, &ay, &aw, &ah );
+
+	row = ch>>4;
+	col = ch&15;
+
+	frow = row*0.0625;
+	fcol = col*0.0625;
+	size = 0.0625;
+
+	re.DrawStretchPic( ax, ay, aw, ah,
+					   fcol, frow, 
+					   fcol + size, frow + size, 
+					   cls.charSetShader );
+}
+
+/*
+** SCR_DrawSmallChar
+** small chars are drawn at native screen resolution
+*/
+void SCR_DrawSmallChar( int x, int y, int ch ) {
+	int row, col;
+	float frow, fcol;
+	float size;
+
+	ch &= 255;
+
+	if ( ch == ' ' ) {
+		return;
+	}
+
+	if ( y < -SMALLCHAR_HEIGHT ) {
+		return;
+	}
+
+	row = ch>>4;
+	col = ch&15;
+
+	frow = row*0.0625;
+	fcol = col*0.0625;
+	size = 0.0625;
+
+	re.DrawStretchPic( x, y, SMALLCHAR_WIDTH, SMALLCHAR_HEIGHT,
+					   fcol, frow, 
+					   fcol + size, frow + size, 
+					   cls.charSetShader );
+}
+
+
+/*
+==================
+SCR_DrawBigString[Color]
+
+Draws a multi-colored string with a drop shadow, optionally forcing
+to a fixed color.
+
+Coordinates are at 640 by 480 virtual resolution
+==================
+*/
+void SCR_DrawStringExt( int x, int y, float size, const char *string, float *setColor, qboolean forceColor ) {
+	vec4_t		color;
+	const char	*s;
+	int			xx;
+
+	// draw the drop shadow
+	color[0] = color[1] = color[2] = 0;
+	color[3] = setColor[3];
+	re.SetColor( color );
+	s = string;
+	xx = x;
+	while ( *s ) {
+		if ( Q_IsColorString( s ) ) {
+			s += 2;
+			continue;
+		}
+		SCR_DrawChar( xx+2, y+2, size, *s );
+		xx += size;
+		s++;
+	}
+
+
+	// draw the colored text
+	s = string;
+	xx = x;
+	re.SetColor( setColor );
+	while ( *s ) {
+		if ( Q_IsColorString( s ) ) {
+			if ( !forceColor ) {
+				Com_Memcpy( color, g_color_table[ColorIndex(*(s+1))], sizeof( color ) );
+				color[3] = setColor[3];
+				re.SetColor( color );
+			}
+			s += 2;
+			continue;
+		}
+		SCR_DrawChar( xx, y, size, *s );
+		xx += size;
+		s++;
+	}
+	re.SetColor( NULL );
+}
+
+
+void SCR_DrawBigString( int x, int y, const char *s, float alpha ) {
+	float	color[4];
+
+	color[0] = color[1] = color[2] = 1.0;
+	color[3] = alpha;
+	SCR_DrawStringExt( x, y, BIGCHAR_WIDTH, s, color, qfalse );
+}
+
+void SCR_DrawBigStringColor( int x, int y, const char *s, vec4_t color ) {
+	SCR_DrawStringExt( x, y, BIGCHAR_WIDTH, s, color, qtrue );
+}
+
+
+/*
+==================
+SCR_DrawSmallString[Color]
+
+Draws a multi-colored string with a drop shadow, optionally forcing
+to a fixed color.
+
+Coordinates are at 640 by 480 virtual resolution
+==================
+*/
+void SCR_DrawSmallStringExt( int x, int y, const char *string, float *setColor, qboolean forceColor ) {
+	vec4_t		color;
+	const char	*s;
+	int			xx;
+
+	// draw the colored text
+	s = string;
+	xx = x;
+	re.SetColor( setColor );
+	while ( *s ) {
+		if ( Q_IsColorString( s ) ) {
+			if ( !forceColor ) {
+				Com_Memcpy( color, g_color_table[ColorIndex(*(s+1))], sizeof( color ) );
+				color[3] = setColor[3];
+				re.SetColor( color );
+			}
+			s += 2;
+			continue;
+		}
+		SCR_DrawSmallChar( xx, y, *s );
+		xx += SMALLCHAR_WIDTH;
+		s++;
+	}
+	re.SetColor( NULL );
+}
+
+
+
+/*
+** SCR_Strlen -- skips color escape codes
+*/
+static int SCR_Strlen( const char *str ) {
+	const char *s = str;
+	int count = 0;
+
+	while ( *s ) {
+		if ( Q_IsColorString( s ) ) {
+			s += 2;
+		} else {
+			count++;
+			s++;
+		}
+	}
+
+	return count;
+}
+
+/*
+** SCR_GetBigStringWidth
+*/ 
+int	SCR_GetBigStringWidth( const char *str ) {
+	return SCR_Strlen( str ) * 16;
+}
+
+
+//===============================================================================
+
+/*
+===============================================================================
+
+DEBUG GRAPH
+
+===============================================================================
+*/
+
+typedef struct
+{
+	float	value;
+	int		color;
+} graphsamp_t;
+
+static	int			current;
+static	graphsamp_t	values[1024];
+
+/*
+==============
+SCR_DebugGraph
+==============
+*/
+void SCR_DebugGraph (float value, int color)
+{
+	values[current&1023].value = value;
+	values[current&1023].color = color;
+	current++;
+}
+
+/*
+==============
+SCR_DrawDebugGraph
+==============
+*/
+void SCR_DrawDebugGraph (void)
+{
+	int		a, x, y, w, i, h;
+	float	v;
+	int		color;
+
+	//
+	// draw the graph
+	//
+	w = cls.glconfig.vidWidth;
+	x = 0;
+	y = cls.glconfig.vidHeight;
+	re.SetColor( g_color_table[0] );
+	re.DrawStretchPic(x, y - cl_graphheight->integer, 
+		w, cl_graphheight->integer, 0, 0, 0, 0, cls.whiteShader );
+	re.SetColor( NULL );
+
+	for (a=0 ; a<w ; a++)
+	{
+		i = (current-1-a+1024) & 1023;
+		v = values[i].value;
+		color = values[i].color;
+		v = v * cl_graphscale->integer + cl_graphshift->integer;
+		
+		if (v < 0)
+			v += cl_graphheight->integer * (1+(int)(-v / cl_graphheight->integer));
+		h = (int)v % cl_graphheight->integer;
+		re.DrawStretchPic( x+w-1-a, y - h, 1, h, 0, 0, 0, 0, cls.whiteShader );
+	}
+}
+
+//=============================================================================
+
+/*
+==================
+SCR_Init
+==================
+*/
+void SCR_Init( void ) {
+	cl_timegraph = Cvar_Get ("timegraph", "0", CVAR_CHEAT);
+	cl_debuggraph = Cvar_Get ("debuggraph", "0", CVAR_CHEAT);
+	cl_graphheight = Cvar_Get ("graphheight", "32", CVAR_CHEAT);
+	cl_graphscale = Cvar_Get ("graphscale", "1", CVAR_CHEAT);
+	cl_graphshift = Cvar_Get ("graphshift", "0", CVAR_CHEAT);
+
+	scr_initialized = qtrue;
+}
+
+
+//=======================================================
+
+/*
+==================
+SCR_DrawScreenField
+
+This will be called twice if rendering in stereo mode
+==================
+*/
+void SCR_DrawScreenField( stereoFrame_t stereoFrame ) {
+	re.BeginFrame( stereoFrame );
+
+	// wide aspect ratio screens need to have the sides cleared
+	// unless they are displaying game renderings
+	if ( cls.state != CA_ACTIVE && cls.state != CA_CINEMATIC ) {
+		if ( cls.glconfig.vidWidth * 480 > cls.glconfig.vidHeight * 640 ) {
+			re.SetColor( g_color_table[0] );
+			re.DrawStretchPic( 0, 0, cls.glconfig.vidWidth, cls.glconfig.vidHeight, 0, 0, 0, 0, cls.whiteShader );
+			re.SetColor( NULL );
+		}
+	}
+
+	if ( !uivm ) {
+		Com_DPrintf("draw screen without UI loaded\n");
+		return;
+	}
+
+	// if the menu is going to cover the entire screen, we
+	// don't need to render anything under it
+	if ( !VM_Call( uivm, UI_IS_FULLSCREEN )) {
+		switch( cls.state ) {
+		default:
+			Com_Error( ERR_FATAL, "SCR_DrawScreenField: bad cls.state" );
+			break;
+		case CA_CINEMATIC:
+			SCR_DrawCinematic();
+			break;
+		case CA_DISCONNECTED:
+			// force menu up
+			S_StopAllSounds();
+			VM_Call( uivm, UI_SET_ACTIVE_MENU, UIMENU_MAIN );
+			break;
+		case CA_CONNECTING:
+		case CA_CHALLENGING:
+		case CA_CONNECTED:
+			// connecting clients will only show the connection dialog
+			// refresh to update the time
+			VM_Call( uivm, UI_REFRESH, cls.realtime );
+			VM_Call( uivm, UI_DRAW_CONNECT_SCREEN, qfalse );
+			break;
+		case CA_LOADING:
+		case CA_PRIMED:
+			// draw the game information screen and loading progress
+			CL_CGameRendering( stereoFrame );
+
+			// also draw the connection information, so it doesn't
+			// flash away too briefly on local or lan games
+			// refresh to update the time
+			VM_Call( uivm, UI_REFRESH, cls.realtime );
+			VM_Call( uivm, UI_DRAW_CONNECT_SCREEN, qtrue );
+			break;
+		case CA_ACTIVE:
+			CL_CGameRendering( stereoFrame );
+			break;
+		}
+	}
+
+	// the menu draws next
+	if ( cls.keyCatchers & KEYCATCH_UI && uivm ) {
+		VM_Call( uivm, UI_REFRESH, cls.realtime );
+	}
+
+	// console draws next
+	Con_DrawConsole ();
+
+	// debug graph can be drawn on top of anything
+	if ( cl_debuggraph->integer || cl_timegraph->integer || cl_debugMove->integer ) {
+		SCR_DrawDebugGraph ();
+	}
+}
+
+/*
+==================
+SCR_UpdateScreen
+
+This is called every frame, and can also be called explicitly to flush
+text to the screen.
+==================
+*/
+void SCR_UpdateScreen( void ) {
+	static int	recursive;
+
+	if ( !scr_initialized ) {
+		return;				// not initialized yet
+	}
+
+	if ( ++recursive > 2 ) {
+		Com_Error( ERR_FATAL, "SCR_UpdateScreen: recursively called" );
+	}
+	recursive = 1;
+
+	// if running in stereo, we need to draw the frame twice
+	if ( cls.glconfig.stereoEnabled ) {
+		SCR_DrawScreenField( STEREO_LEFT );
+		SCR_DrawScreenField( STEREO_RIGHT );
+	} else {
+		SCR_DrawScreenField( STEREO_CENTER );
+	}
+
+	if ( com_speeds->integer ) {
+		re.EndFrame( &time_frontend, &time_backend );
+	} else {
+		re.EndFrame( NULL, NULL );
+	}
+
+	recursive = 0;
+}
+

src/client/client.h

@@ -0,0 +1,561 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+// client.h -- primary header for client
+
+#include "../qcommon/q_shared.h"
+#include "../qcommon/qcommon.h"
+#include "../renderer/tr_public.h"
+#include "../ui/ui_public.h"
+#include "keys.h"
+#include "snd_public.h"
+#include "../cgame/cg_public.h"
+#include "../game/bg_public.h"
+
+#if USE_CURL
+#include "cl_curl.h"
+#endif /* USE_CURL */
+
+// file full of random crap that gets used to create cl_guid
+#define QKEY_FILE "qkey"
+#define QKEY_SIZE 2048
+
+#define	RETRANSMIT_TIMEOUT	3000	// time between connection packet retransmits
+
+// snapshots are a view of the server at a given time
+typedef struct {
+	qboolean		valid;			// cleared if delta parsing was invalid
+	int				snapFlags;		// rate delayed and dropped commands
+
+	int				serverTime;		// server time the message is valid for (in msec)
+
+	int				messageNum;		// copied from netchan->incoming_sequence
+	int				deltaNum;		// messageNum the delta is from
+	int				ping;			// time from when cmdNum-1 was sent to time packet was reeceived
+	byte			areamask[MAX_MAP_AREA_BYTES];		// portalarea visibility bits
+
+	int				cmdNum;			// the next cmdNum the server is expecting
+	playerState_t	ps;						// complete information about the current player at this time
+
+	int				numEntities;			// all of the entities that need to be presented
+	int				parseEntitiesNum;		// at the time of this snapshot
+
+	int				serverCommandNum;		// execute all commands up to this before
+											// making the snapshot current
+} clSnapshot_t;
+
+
+
+/*
+=============================================================================
+
+the clientActive_t structure is wiped completely at every
+new gamestate_t, potentially several times during an established connection
+
+=============================================================================
+*/
+
+typedef struct {
+	int		p_cmdNumber;		// cl.cmdNumber when packet was sent
+	int		p_serverTime;		// usercmd->serverTime when packet was sent
+	int		p_realtime;			// cls.realtime when packet was sent
+} outPacket_t;
+
+// the parseEntities array must be large enough to hold PACKET_BACKUP frames of
+// entities, so that when a delta compressed message arives from the server
+// it can be un-deltad from the original 
+#define	MAX_PARSE_ENTITIES	2048
+
+extern int g_console_field_width;
+
+typedef struct {
+	int			timeoutcount;		// it requres several frames in a timeout condition
+									// to disconnect, preventing debugging breaks from
+									// causing immediate disconnects on continue
+	clSnapshot_t	snap;			// latest received from server
+
+	int			serverTime;			// may be paused during play
+	int			oldServerTime;		// to prevent time from flowing bakcwards
+	int			oldFrameServerTime;	// to check tournament restarts
+	int			serverTimeDelta;	// cl.serverTime = cls.realtime + cl.serverTimeDelta
+									// this value changes as net lag varies
+	qboolean	extrapolatedSnapshot;	// set if any cgame frame has been forced to extrapolate
+									// cleared when CL_AdjustTimeDelta looks at it
+	qboolean	newSnapshots;		// set on parse of any valid packet
+
+	gameState_t	gameState;			// configstrings
+	char		mapname[MAX_QPATH];	// extracted from CS_SERVERINFO
+
+	int			parseEntitiesNum;	// index (not anded off) into cl_parse_entities[]
+
+	int			mouseDx[2], mouseDy[2];	// added to by mouse events
+	int			mouseIndex;
+	int			joystickAxis[MAX_JOYSTICK_AXIS];	// set by joystick events
+
+	// cgame communicates a few values to the client system
+	int			cgameUserCmdValue;	// current weapon to add to usercmd_t
+	float		cgameSensitivity;
+
+	// cmds[cmdNumber] is the predicted command, [cmdNumber-1] is the last
+	// properly generated command
+	usercmd_t	cmds[CMD_BACKUP];	// each mesage will send several old cmds
+	int			cmdNumber;			// incremented each frame, because multiple
+									// frames may need to be packed into a single packet
+
+	outPacket_t	outPackets[PACKET_BACKUP];	// information about each packet we have sent out
+
+	// the client maintains its own idea of view angles, which are
+	// sent to the server each frame.  It is cleared to 0 upon entering each level.
+	// the server sends a delta each frame which is added to the locally
+	// tracked view angles to account for standing on rotating objects,
+	// and teleport direction changes
+	vec3_t		viewangles;
+
+	int			serverId;			// included in each client message so the server
+												// can tell if it is for a prior map_restart
+	// big stuff at end of structure so most offsets are 15 bits or less
+	clSnapshot_t	snapshots[PACKET_BACKUP];
+
+	entityState_t	entityBaselines[MAX_GENTITIES];	// for delta compression when not in previous frame
+
+	entityState_t	parseEntities[MAX_PARSE_ENTITIES];
+} clientActive_t;
+
+extern	clientActive_t		cl;
+
+/*
+=============================================================================
+
+the clientConnection_t structure is wiped when disconnecting from a server,
+either to go to a full screen console, play a demo, or connect to a different server
+
+A connection can be to either a server through the network layer or a
+demo through a file.
+
+=============================================================================
+*/
+
+
+typedef struct {
+
+	int			clientNum;
+	int			lastPacketSentTime;			// for retransmits during connection
+	int			lastPacketTime;				// for timeouts
+
+	netadr_t	serverAddress;
+	int			connectTime;				// for connection retransmits
+	int			connectPacketCount;			// for display on connection dialog
+	char		serverMessage[MAX_STRING_TOKENS];	// for display on connection dialog
+
+	int			challenge;					// from the server to use for connecting
+	int			checksumFeed;				// from the server for checksum calculations
+
+	// these are our reliable messages that go to the server
+	int			reliableSequence;
+	int			reliableAcknowledge;		// the last one the server has executed
+	char		reliableCommands[MAX_RELIABLE_COMMANDS][MAX_STRING_CHARS];
+
+	// server message (unreliable) and command (reliable) sequence
+	// numbers are NOT cleared at level changes, but continue to
+	// increase as long as the connection is valid
+
+	// message sequence is used by both the network layer and the
+	// delta compression layer
+	int			serverMessageSequence;
+
+	// reliable messages received from server
+	int			serverCommandSequence;
+	int			lastExecutedServerCommand;		// last server command grabbed or executed with CL_GetServerCommand
+	char		serverCommands[MAX_RELIABLE_COMMANDS][MAX_STRING_CHARS];
+
+	// file transfer from server
+	fileHandle_t download;
+	char		downloadTempName[MAX_OSPATH];
+	char		downloadName[MAX_OSPATH];
+#ifdef USE_CURL
+	qboolean	cURLEnabled;
+	qboolean	cURLUsed;
+	qboolean	cURLDisconnected;
+	char		downloadURL[MAX_OSPATH];
+	CURL		*downloadCURL;
+	CURLM		*downloadCURLM;
+#endif /* USE_CURL */
+	int		sv_allowDownload;
+	char		sv_dlURL[MAX_CVAR_VALUE_STRING];
+	int			downloadNumber;
+	int			downloadBlock;	// block we are waiting for
+	int			downloadCount;	// how many bytes we got
+	int			downloadSize;	// how many bytes we got
+	char		downloadList[MAX_INFO_STRING]; // list of paks we need to download
+	qboolean	downloadRestart;	// if true, we need to do another FS_Restart because we downloaded a pak
+
+	// demo information
+	char		demoName[MAX_QPATH];
+	qboolean	spDemoRecording;
+	qboolean	demorecording;
+	qboolean	demoplaying;
+	qboolean	demowaiting;	// don't record until a non-delta message is received
+	qboolean	firstDemoFrameSkipped;
+	fileHandle_t	demofile;
+
+	int			timeDemoFrames;		// counter of rendered frames
+	int			timeDemoStart;		// cls.realtime before first frame
+	int			timeDemoBaseTime;	// each frame will be at this time + frameNum * 50
+
+	// big stuff at end of structure so most offsets are 15 bits or less
+	netchan_t	netchan;
+} clientConnection_t;
+
+extern	clientConnection_t clc;
+
+/*
+==================================================================
+
+the clientStatic_t structure is never wiped, and is used even when
+no client connection is active at all
+
+==================================================================
+*/
+
+typedef struct {
+	netadr_t	adr;
+	int			start;
+	int			time;
+	char		info[MAX_INFO_STRING];
+} ping_t;
+
+typedef struct {
+	netadr_t	adr;
+	char	  	hostName[MAX_HOSTNAME_LENGTH];
+	char	  	mapName[MAX_NAME_LENGTH];
+	char	  	game[MAX_NAME_LENGTH];
+	int			netType;
+	int			gameType;
+	int		  	clients;
+	int		  	maxClients;
+	int			minPing;
+	int			maxPing;
+	int			ping;
+	qboolean	visible;
+} serverInfo_t;
+
+typedef struct {
+	byte	ip[4];
+	unsigned short	port;
+} serverAddress_t;
+
+typedef struct {
+	connstate_t	state;				// connection status
+	int			keyCatchers;		// bit flags
+
+	qboolean	cddialog;			// bring up the cd needed dialog next frame
+
+	char		servername[MAX_OSPATH];		// name of server from original connect (used by reconnect)
+
+	// when the server clears the hunk, all of these must be restarted
+	qboolean	rendererStarted;
+	qboolean	soundStarted;
+	qboolean	soundRegistered;
+	qboolean	uiStarted;
+	qboolean	cgameStarted;
+
+	int			framecount;
+	int			frametime;			// msec since last frame
+
+	int			realtime;			// ignores pause
+	int			realFrametime;		// ignoring pause, so console always works
+
+	int			numlocalservers;
+	serverInfo_t	localServers[MAX_OTHER_SERVERS];
+
+	int			numglobalservers;
+	serverInfo_t  globalServers[MAX_GLOBAL_SERVERS];
+	// additional global servers
+	int			numGlobalServerAddresses;
+	serverAddress_t		globalServerAddresses[MAX_GLOBAL_SERVERS];
+
+	int			numfavoriteservers;
+	serverInfo_t	favoriteServers[MAX_OTHER_SERVERS];
+
+	int			nummplayerservers;
+	serverInfo_t	mplayerServers[MAX_OTHER_SERVERS];
+
+	int pingUpdateSource;		// source currently pinging or updating
+
+	int masterNum;
+
+	// update server info
+	netadr_t	updateServer;
+	char		updateChallenge[MAX_TOKEN_CHARS];
+	char		updateInfoString[MAX_INFO_STRING];
+
+	netadr_t	authorizeServer;
+
+	// rendering info
+	glconfig_t	glconfig;
+	qhandle_t	charSetShader;
+	qhandle_t	whiteShader;
+	qhandle_t	consoleShader;
+} clientStatic_t;
+
+extern	clientStatic_t		cls;
+
+//=============================================================================
+
+extern	vm_t			*cgvm;	// interface to cgame dll or vm
+extern	vm_t			*uivm;	// interface to ui dll or vm
+extern	refexport_t		re;		// interface to refresh .dll
+
+
+//
+// cvars
+//
+extern	cvar_t	*cl_nodelta;
+extern	cvar_t	*cl_debugMove;
+extern	cvar_t	*cl_noprint;
+extern	cvar_t	*cl_timegraph;
+extern	cvar_t	*cl_maxpackets;
+extern	cvar_t	*cl_packetdup;
+extern	cvar_t	*cl_shownet;
+extern	cvar_t	*cl_showSend;
+extern	cvar_t	*cl_timeNudge;
+extern	cvar_t	*cl_showTimeDelta;
+extern	cvar_t	*cl_freezeDemo;
+
+extern	cvar_t	*cl_yawspeed;
+extern	cvar_t	*cl_pitchspeed;
+extern	cvar_t	*cl_run;
+extern	cvar_t	*cl_anglespeedkey;
+
+extern	cvar_t	*cl_sensitivity;
+extern	cvar_t	*cl_platformSensitivity;
+extern	cvar_t	*cl_freelook;
+
+extern	cvar_t	*cl_mouseAccel;
+extern	cvar_t	*cl_showMouseRate;
+
+extern	cvar_t	*m_pitch;
+extern	cvar_t	*m_yaw;
+extern	cvar_t	*m_forward;
+extern	cvar_t	*m_side;
+extern	cvar_t	*m_filter;
+
+extern	cvar_t	*cl_timedemo;
+extern	cvar_t	*cl_aviFrameRate;
+extern	cvar_t	*cl_aviMotionJpeg;
+
+extern	cvar_t	*cl_activeAction;
+
+extern	cvar_t	*cl_allowDownload;
+extern  cvar_t  *cl_downloadMethod;
+extern	cvar_t	*cl_conXOffset;
+extern	cvar_t	*cl_inGameVideo;
+
+extern	cvar_t	*cl_lanForcePackets;
+extern	cvar_t	*cl_autoRecordDemo;
+
+//=================================================
+
+//
+// cl_main
+//
+
+void CL_Init (void);
+void CL_FlushMemory(void);
+void CL_ShutdownAll(void);
+void CL_AddReliableCommand( const char *cmd );
+
+void CL_StartHunkUsers( void );
+
+void CL_Disconnect_f (void);
+void CL_GetChallengePacket (void);
+void CL_Vid_Restart_f( void );
+void CL_Snd_Restart_f (void);
+void CL_StartDemoLoop( void );
+void CL_NextDemo( void );
+void CL_ReadDemoMessage( void );
+demoState_t CL_DemoState( void );
+int CL_DemoPos( void );
+void CL_DemoName( char *buffer, int size );
+void CL_StopRecord_f( void );
+
+void CL_InitDownloads(void);
+void CL_NextDownload(void);
+
+void CL_GetPing( int n, char *buf, int buflen, int *pingtime );
+void CL_GetPingInfo( int n, char *buf, int buflen );
+void CL_ClearPing( int n );
+int CL_GetPingQueueCount( void );
+
+void CL_ShutdownRef( void );
+void CL_InitRef( void );
+int CL_ServerStatus( char *serverAddress, char *serverStatusString, int maxLen );
+
+qboolean CL_CheckPaused(void);
+
+//
+// cl_input
+//
+typedef struct {
+	int			down[2];		// key nums holding it down
+	unsigned	downtime;		// msec timestamp
+	unsigned	msec;			// msec down this frame if both a down and up happened
+	qboolean	active;			// current state
+	qboolean	wasPressed;		// set when down, not cleared when up
+} kbutton_t;
+
+extern	kbutton_t	in_mlook, in_klook;
+extern 	kbutton_t 	in_strafe;
+extern 	kbutton_t 	in_speed;
+
+void CL_InitInput (void);
+void CL_SendCmd (void);
+void CL_ClearState (void);
+void CL_ReadPackets (void);
+
+void CL_WritePacket( void );
+void IN_CenterView (void);
+
+void CL_VerifyCode( void );
+
+float CL_KeyState (kbutton_t *key);
+char *Key_KeynumToString (int keynum);
+
+//
+// cl_parse.c
+//
+extern int cl_connectedToPureServer;
+extern int cl_connectedToCheatServer;
+
+void CL_SystemInfoChanged( void );
+void CL_ParseServerMessage( msg_t *msg );
+
+//====================================================================
+
+void	CL_ServerInfoPacket( netadr_t from, msg_t *msg );
+void	CL_LocalServers_f( void );
+void	CL_GlobalServers_f( void );
+void	CL_FavoriteServers_f( void );
+void	CL_Ping_f( void );
+qboolean CL_UpdateVisiblePings_f( int source );
+
+
+//
+// console
+//
+void Con_DrawCharacter (int cx, int line, int num);
+
+void Con_CheckResize (void);
+void Con_Init (void);
+void Con_Clear_f (void);
+void Con_ToggleConsole_f (void);
+void Con_DrawNotify (void);
+void Con_ClearNotify (void);
+void Con_RunConsole (void);
+void Con_DrawConsole (void);
+void Con_PageUp( void );
+void Con_PageDown( void );
+void Con_Top( void );
+void Con_Bottom( void );
+void Con_Close( void );
+
+void CL_LoadConsoleHistory( void );
+void CL_SaveConsoleHistory( void );
+
+//
+// cl_scrn.c
+//
+void	SCR_Init (void);
+void	SCR_UpdateScreen (void);
+
+void	SCR_DebugGraph (float value, int color);
+
+int		SCR_GetBigStringWidth( const char *str );	// returns in virtual 640x480 coordinates
+
+void	SCR_AdjustFrom640( float *x, float *y, float *w, float *h );
+void	SCR_FillRect( float x, float y, float width, float height, 
+					 const float *color );
+void	SCR_DrawPic( float x, float y, float width, float height, qhandle_t hShader );
+void	SCR_DrawNamedPic( float x, float y, float width, float height, const char *picname );
+
+void	SCR_DrawBigString( int x, int y, const char *s, float alpha );			// draws a string with embedded color control characters with fade
+void	SCR_DrawBigStringColor( int x, int y, const char *s, vec4_t color );	// ignores embedded color control characters
+void	SCR_DrawSmallStringExt( int x, int y, const char *string, float *setColor, qboolean forceColor );
+void	SCR_DrawSmallChar( int x, int y, int ch );
+
+
+//
+// cl_cin.c
+//
+
+void CL_PlayCinematic_f( void );
+void SCR_DrawCinematic (void);
+void SCR_RunCinematic (void);
+void SCR_StopCinematic (void);
+int CIN_PlayCinematic( const char *arg0, int xpos, int ypos, int width, int height, int bits);
+e_status CIN_StopCinematic(int handle);
+e_status CIN_RunCinematic (int handle);
+void CIN_DrawCinematic (int handle);
+void CIN_SetExtents (int handle, int x, int y, int w, int h);
+void CIN_SetLooping (int handle, qboolean loop);
+void CIN_UploadCinematic(int handle);
+void CIN_CloseAllVideos(void);
+
+//
+// cl_cgame.c
+//
+void CL_InitCGame( void );
+void CL_ShutdownCGame( void );
+qboolean CL_GameCommand( void );
+void CL_GameConsoleText( void );
+void CL_CGameRendering( stereoFrame_t stereo );
+void CL_SetCGameTime( void );
+void CL_FirstSnapshot( void );
+void CL_ShaderStateChanged(void);
+
+//
+// cl_ui.c
+//
+void CL_InitUI( void );
+void CL_ShutdownUI( void );
+int Key_GetCatcher( void );
+void Key_SetCatcher( int catcher );
+void LAN_LoadCachedServers( void );
+void LAN_SaveServersToCache( void );
+
+
+//
+// cl_net_chan.c
+//
+void CL_Netchan_Transmit( netchan_t *chan, msg_t* msg);	//int length, const byte *data );
+void CL_Netchan_TransmitNextFragment( netchan_t *chan );
+qboolean CL_Netchan_Process( netchan_t *chan, msg_t *msg );
+
+//
+// cl_avi.c
+//
+qboolean CL_OpenAVIForWriting( const char *filename );
+void CL_TakeVideoFrame( void );
+void CL_WriteAVIVideoFrame( const byte *imageBuffer, int size );
+void CL_WriteAVIAudioFrame( const byte *pcmBuffer, int size );
+qboolean CL_CloseAVI( void );
+qboolean CL_VideoRecording( void );

src/client/keycodes.h

@@ -0,0 +1,278 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+//
+#ifndef __KEYCODES_H__
+#define __KEYCODES_H__
+
+//
+// these are the key numbers that should be passed to KeyEvent
+//
+
+// normal keys should be passed as lowercased ascii
+
+typedef enum {
+	K_NONE = -1,
+	K_TAB = 9,
+	K_ENTER = 13,
+	K_ESCAPE = 27,
+	K_SPACE = 32,
+
+	K_BACKSPACE = 127,
+
+	K_COMMAND = 128,
+	K_CAPSLOCK,
+	K_POWER,
+	K_PAUSE,
+
+	K_UPARROW,
+	K_DOWNARROW,
+	K_LEFTARROW,
+	K_RIGHTARROW,
+
+	K_ALT,
+	K_CTRL,
+	K_SHIFT,
+	K_INS,
+	K_DEL,
+	K_PGDN,
+	K_PGUP,
+	K_HOME,
+	K_END,
+
+	K_F1,
+	K_F2,
+	K_F3,
+	K_F4,
+	K_F5,
+	K_F6,
+	K_F7,
+	K_F8,
+	K_F9,
+	K_F10,
+	K_F11,
+	K_F12,
+	K_F13,
+	K_F14,
+	K_F15,
+
+	K_KP_HOME,
+	K_KP_UPARROW,
+	K_KP_PGUP,
+	K_KP_LEFTARROW,
+	K_KP_5,
+	K_KP_RIGHTARROW,
+	K_KP_END,
+	K_KP_DOWNARROW,
+	K_KP_PGDN,
+	K_KP_ENTER,
+	K_KP_INS,
+	K_KP_DEL,
+	K_KP_SLASH,
+	K_KP_MINUS,
+	K_KP_PLUS,
+	K_KP_NUMLOCK,
+	K_KP_STAR,
+	K_KP_EQUALS,
+
+	K_MOUSE1,
+	K_MOUSE2,
+	K_MOUSE3,
+	K_MOUSE4,
+	K_MOUSE5,
+
+	K_MWHEELDOWN,
+	K_MWHEELUP,
+
+	K_JOY1,
+	K_JOY2,
+	K_JOY3,
+	K_JOY4,
+	K_JOY5,
+	K_JOY6,
+	K_JOY7,
+	K_JOY8,
+	K_JOY9,
+	K_JOY10,
+	K_JOY11,
+	K_JOY12,
+	K_JOY13,
+	K_JOY14,
+	K_JOY15,
+	K_JOY16,
+	K_JOY17,
+	K_JOY18,
+	K_JOY19,
+	K_JOY20,
+	K_JOY21,
+	K_JOY22,
+	K_JOY23,
+	K_JOY24,
+	K_JOY25,
+	K_JOY26,
+	K_JOY27,
+	K_JOY28,
+	K_JOY29,
+	K_JOY30,
+	K_JOY31,
+	K_JOY32,
+
+	K_AUX1,
+	K_AUX2,
+	K_AUX3,
+	K_AUX4,
+	K_AUX5,
+	K_AUX6,
+	K_AUX7,
+	K_AUX8,
+	K_AUX9,
+	K_AUX10,
+	K_AUX11,
+	K_AUX12,
+	K_AUX13,
+	K_AUX14,
+	K_AUX15,
+	K_AUX16,
+
+	K_WORLD_0,
+	K_WORLD_1,
+	K_WORLD_2,
+	K_WORLD_3,
+	K_WORLD_4,
+	K_WORLD_5,
+	K_WORLD_6,
+	K_WORLD_7,
+	K_WORLD_8,
+	K_WORLD_9,
+	K_WORLD_10,
+	K_WORLD_11,
+	K_WORLD_12,
+	K_WORLD_13,
+	K_WORLD_14,
+	K_WORLD_15,
+	K_WORLD_16,
+	K_WORLD_17,
+	K_WORLD_18,
+	K_WORLD_19,
+	K_WORLD_20,
+	K_WORLD_21,
+	K_WORLD_22,
+	K_WORLD_23,
+	K_WORLD_24,
+	K_WORLD_25,
+	K_WORLD_26,
+	K_WORLD_27,
+	K_WORLD_28,
+	K_WORLD_29,
+	K_WORLD_30,
+	K_WORLD_31,
+	K_WORLD_32,
+	K_WORLD_33,
+	K_WORLD_34,
+	K_WORLD_35,
+	K_WORLD_36,
+	K_WORLD_37,
+	K_WORLD_38,
+	K_WORLD_39,
+	K_WORLD_40,
+	K_WORLD_41,
+	K_WORLD_42,
+	K_WORLD_43,
+	K_WORLD_44,
+	K_WORLD_45,
+	K_WORLD_46,
+	K_WORLD_47,
+	K_WORLD_48,
+	K_WORLD_49,
+	K_WORLD_50,
+	K_WORLD_51,
+	K_WORLD_52,
+	K_WORLD_53,
+	K_WORLD_54,
+	K_WORLD_55,
+	K_WORLD_56,
+	K_WORLD_57,
+	K_WORLD_58,
+	K_WORLD_59,
+	K_WORLD_60,
+	K_WORLD_61,
+	K_WORLD_62,
+	K_WORLD_63,
+	K_WORLD_64,
+	K_WORLD_65,
+	K_WORLD_66,
+	K_WORLD_67,
+	K_WORLD_68,
+	K_WORLD_69,
+	K_WORLD_70,
+	K_WORLD_71,
+	K_WORLD_72,
+	K_WORLD_73,
+	K_WORLD_74,
+	K_WORLD_75,
+	K_WORLD_76,
+	K_WORLD_77,
+	K_WORLD_78,
+	K_WORLD_79,
+	K_WORLD_80,
+	K_WORLD_81,
+	K_WORLD_82,
+	K_WORLD_83,
+	K_WORLD_84,
+	K_WORLD_85,
+	K_WORLD_86,
+	K_WORLD_87,
+	K_WORLD_88,
+	K_WORLD_89,
+	K_WORLD_90,
+	K_WORLD_91,
+	K_WORLD_92,
+	K_WORLD_93,
+	K_WORLD_94,
+	K_WORLD_95,
+
+	K_SUPER,
+	K_COMPOSE,
+	K_MODE,
+	K_HELP,
+	K_PRINT,
+	K_SYSREQ,
+	K_SCROLLOCK,
+	K_BREAK,
+	K_MENU,
+	K_EURO,
+	K_UNDO,
+
+	MAX_KEYS
+} keyNum_t;
+
+// MAX_KEYS replaces K_LAST_KEY, however some mods may have used K_LAST_KEY
+// in detecting binds, so we leave it defined to the old hardcoded value
+// of maxiumum keys to prevent mods from crashing older versions of the engine
+#define K_LAST_KEY              256
+
+// The menu code needs to get both key and char events, but
+// to avoid duplicating the paths, the char events are just
+// distinguished by or'ing in K_CHAR_FLAG (ugly)
+#define	K_CHAR_FLAG		1024
+
+#endif

src/client/keys.h

@@ -0,0 +1,58 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+#include "keycodes.h"
+
+typedef struct {
+	qboolean	down;
+	int			repeats;		// if > 1, it is autorepeating
+	char		*binding;
+} qkey_t;
+
+extern	qboolean	key_overstrikeMode;
+extern	qkey_t		keys[MAX_KEYS];
+
+// NOTE TTimo the declaration of field_t and Field_Clear is now in qcommon/qcommon.h
+void Field_KeyDownEvent( field_t *edit, int key );
+void Field_CharEvent( field_t *edit, int ch );
+void Field_Draw( field_t *edit, int x, int y, int width, qboolean showCursor );
+void Field_BigDraw( field_t *edit, int x, int y, int width, qboolean showCursor );
+
+#define		COMMAND_HISTORY		32
+extern	field_t	historyEditLines[COMMAND_HISTORY];
+
+extern	field_t	g_consoleField;
+extern	field_t	chatField;
+extern	int				anykeydown;
+extern	qboolean	chat_team;
+extern	int			chat_playerNum;
+
+void Key_WriteBindings( fileHandle_t f );
+void Key_SetBinding( int keynum, const char *binding );
+char *Key_GetBinding( int keynum );
+qboolean Key_IsDown( int keynum );
+qboolean Key_GetOverstrikeMode( void );
+void Key_SetOverstrikeMode( qboolean state );
+void Key_ClearStates( void );
+int Key_GetKey(const char *binding);
+void Key_KeynumToStringBuf( int keynum, char *buf, int buflen );
+void Key_GetBindingBuf( int keynum, char *buf, int buflen );

src/client/qal.c

@@ -0,0 +1,366 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+Copyright (C) 2005 Stuart Dalton (badcdev@gmail.com)
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+// Dynamically loads OpenAL
+
+#if USE_OPENAL
+
+#include "qal.h"
+
+#if USE_OPENAL_DLOPEN
+
+#if USE_SDL_VIDEO
+#include "SDL.h"
+#include "SDL_loadso.h"
+#define OBJTYPE void *
+#define OBJLOAD(x) SDL_LoadObject(x)
+#define SYMLOAD(x,y) SDL_LoadFunction(x,y)
+#define OBJFREE(x) SDL_UnloadObject(x)
+
+#elif defined _WIN32
+#include <windows.h>
+#define OBJTYPE HMODULE
+#define OBJLOAD(x) LoadLibrary(x)
+#define SYMLOAD(x,y) GetProcAddress(x,y)
+#define OBJFREE(x) FreeLibrary(x)
+
+#elif defined __linux__ || defined __FreeBSD__ || defined MACOS_X || defined __sun
+#include <dlfcn.h>
+#define OBJTYPE void *
+#define OBJLOAD(x) dlopen(x, RTLD_LAZY | RTLD_GLOBAL)
+#define SYMLOAD(x,y) dlsym(x,y)
+#define OBJFREE(x) dlclose(x)
+#else
+
+#error "Your platform has no lib loading code or it is disabled"
+#endif
+
+#if defined __linux__ || defined __FreeBSD__ || defined MACOS_X
+#include <unistd.h>
+#include <sys/types.h>
+#endif
+
+LPALENABLE qalEnable;
+LPALDISABLE qalDisable;
+LPALISENABLED qalIsEnabled;
+LPALGETSTRING qalGetString;
+LPALGETBOOLEANV qalGetBooleanv;
+LPALGETINTEGERV qalGetIntegerv;
+LPALGETFLOATV qalGetFloatv;
+LPALGETDOUBLEV qalGetDoublev;
+LPALGETBOOLEAN qalGetBoolean;
+LPALGETINTEGER qalGetInteger;
+LPALGETFLOAT qalGetFloat;
+LPALGETDOUBLE qalGetDouble;
+LPALGETERROR qalGetError;
+LPALISEXTENSIONPRESENT qalIsExtensionPresent;
+LPALGETPROCADDRESS qalGetProcAddress;
+LPALGETENUMVALUE qalGetEnumValue;
+LPALLISTENERF qalListenerf;
+LPALLISTENER3F qalListener3f;
+LPALLISTENERFV qalListenerfv;
+LPALLISTENERI qalListeneri;
+LPALGETLISTENERF qalGetListenerf;
+LPALGETLISTENER3F qalGetListener3f;
+LPALGETLISTENERFV qalGetListenerfv;
+LPALGETLISTENERI qalGetListeneri;
+LPALGENSOURCES qalGenSources;
+LPALDELETESOURCES qalDeleteSources;
+LPALISSOURCE qalIsSource;
+LPALSOURCEF qalSourcef;
+LPALSOURCE3F qalSource3f;
+LPALSOURCEFV qalSourcefv;
+LPALSOURCEI qalSourcei;
+LPALGETSOURCEF qalGetSourcef;
+LPALGETSOURCE3F qalGetSource3f;
+LPALGETSOURCEFV qalGetSourcefv;
+LPALGETSOURCEI qalGetSourcei;
+LPALSOURCEPLAYV qalSourcePlayv;
+LPALSOURCESTOPV qalSourceStopv;
+LPALSOURCEREWINDV qalSourceRewindv;
+LPALSOURCEPAUSEV qalSourcePausev;
+LPALSOURCEPLAY qalSourcePlay;
+LPALSOURCESTOP qalSourceStop;
+LPALSOURCEREWIND qalSourceRewind;
+LPALSOURCEPAUSE qalSourcePause;
+LPALSOURCEQUEUEBUFFERS qalSourceQueueBuffers;
+LPALSOURCEUNQUEUEBUFFERS qalSourceUnqueueBuffers;
+LPALGENBUFFERS qalGenBuffers;
+LPALDELETEBUFFERS qalDeleteBuffers;
+LPALISBUFFER qalIsBuffer;
+LPALBUFFERDATA qalBufferData;
+LPALGETBUFFERF qalGetBufferf;
+LPALGETBUFFERI qalGetBufferi;
+LPALDOPPLERFACTOR qalDopplerFactor;
+LPALDOPPLERVELOCITY qalDopplerVelocity;
+LPALDISTANCEMODEL qalDistanceModel;
+
+LPALCCREATECONTEXT qalcCreateContext;
+LPALCMAKECONTEXTCURRENT qalcMakeContextCurrent;
+LPALCPROCESSCONTEXT qalcProcessContext;
+LPALCSUSPENDCONTEXT qalcSuspendContext;
+LPALCDESTROYCONTEXT qalcDestroyContext;
+LPALCGETCURRENTCONTEXT qalcGetCurrentContext;
+LPALCGETCONTEXTSDEVICE qalcGetContextsDevice;
+LPALCOPENDEVICE qalcOpenDevice;
+LPALCCLOSEDEVICE qalcCloseDevice;
+LPALCGETERROR qalcGetError;
+LPALCISEXTENSIONPRESENT qalcIsExtensionPresent;
+LPALCGETPROCADDRESS qalcGetProcAddress;
+LPALCGETENUMVALUE qalcGetEnumValue;
+LPALCGETSTRING qalcGetString;
+LPALCGETINTEGERV qalcGetIntegerv;
+
+static OBJTYPE OpenALLib = NULL;
+
+static qboolean alinit_fail = qfalse;
+
+/*
+=================
+GPA
+=================
+*/
+static void *GPA(char *str)
+{
+	void *rv;
+
+	rv = SYMLOAD(OpenALLib, str);
+	if(!rv)
+	{
+		Com_Printf( " Can't load symbol %s\n", str);
+		alinit_fail = qtrue;
+		return NULL;
+	}
+	else
+	{
+		Com_DPrintf( " Loaded symbol %s (%p)\n", str, rv);
+        return rv;
+	}
+}
+
+/*
+=================
+QAL_Init
+=================
+*/
+qboolean QAL_Init(const char *libname)
+{
+	if(OpenALLib)
+		return qtrue;
+
+	Com_Printf( "Loading \"%s\"...\n", libname);
+	if( (OpenALLib = OBJLOAD(libname)) == 0 )
+	{
+#ifdef _WIN32
+		return qfalse;
+#else
+		char fn[1024];
+		getcwd(fn, sizeof(fn));
+		strncat(fn, "/", sizeof(fn) - strlen(fn) - 1);
+		strncat(fn, libname, sizeof(fn) - strlen(fn) - 1);
+
+		if( (OpenALLib = OBJLOAD(fn)) == 0 )
+		{
+			return qfalse;
+		}
+#endif
+	}
+
+	alinit_fail = qfalse;
+
+	qalEnable = GPA("alEnable");
+	qalDisable = GPA("alDisable");
+	qalIsEnabled = GPA("alIsEnabled");
+	qalGetString = GPA("alGetString");
+	qalGetBooleanv = GPA("alGetBooleanv");
+	qalGetIntegerv = GPA("alGetIntegerv");
+	qalGetFloatv = GPA("alGetFloatv");
+	qalGetDoublev = GPA("alGetDoublev");
+	qalGetBoolean = GPA("alGetBoolean");
+	qalGetInteger = GPA("alGetInteger");
+	qalGetFloat = GPA("alGetFloat");
+	qalGetDouble = GPA("alGetDouble");
+	qalGetError = GPA("alGetError");
+	qalIsExtensionPresent = GPA("alIsExtensionPresent");
+	qalGetProcAddress = GPA("alGetProcAddress");
+	qalGetEnumValue = GPA("alGetEnumValue");
+	qalListenerf = GPA("alListenerf");
+	qalListener3f = GPA("alListener3f");
+	qalListenerfv = GPA("alListenerfv");
+	qalListeneri = GPA("alListeneri");
+	qalGetListenerf = GPA("alGetListenerf");
+	qalGetListener3f = GPA("alGetListener3f");
+	qalGetListenerfv = GPA("alGetListenerfv");
+	qalGetListeneri = GPA("alGetListeneri");
+	qalGenSources = GPA("alGenSources");
+	qalDeleteSources = GPA("alDeleteSources");
+	qalIsSource = GPA("alIsSource");
+	qalSourcef = GPA("alSourcef");
+	qalSource3f = GPA("alSource3f");
+	qalSourcefv = GPA("alSourcefv");
+	qalSourcei = GPA("alSourcei");
+	qalGetSourcef = GPA("alGetSourcef");
+	qalGetSource3f = GPA("alGetSource3f");
+	qalGetSourcefv = GPA("alGetSourcefv");
+	qalGetSourcei = GPA("alGetSourcei");
+	qalSourcePlayv = GPA("alSourcePlayv");
+	qalSourceStopv = GPA("alSourceStopv");
+	qalSourceRewindv = GPA("alSourceRewindv");
+	qalSourcePausev = GPA("alSourcePausev");
+	qalSourcePlay = GPA("alSourcePlay");
+	qalSourceStop = GPA("alSourceStop");
+	qalSourceRewind = GPA("alSourceRewind");
+	qalSourcePause = GPA("alSourcePause");
+	qalSourceQueueBuffers = GPA("alSourceQueueBuffers");
+	qalSourceUnqueueBuffers = GPA("alSourceUnqueueBuffers");
+	qalGenBuffers = GPA("alGenBuffers");
+	qalDeleteBuffers = GPA("alDeleteBuffers");
+	qalIsBuffer = GPA("alIsBuffer");
+	qalBufferData = GPA("alBufferData");
+	qalGetBufferf = GPA("alGetBufferf");
+	qalGetBufferi = GPA("alGetBufferi");
+	qalDopplerFactor = GPA("alDopplerFactor");
+	qalDopplerVelocity = GPA("alDopplerVelocity");
+	qalDistanceModel = GPA("alDistanceModel");
+
+	qalcCreateContext = GPA("alcCreateContext");
+	qalcMakeContextCurrent = GPA("alcMakeContextCurrent");
+	qalcProcessContext = GPA("alcProcessContext");
+	qalcSuspendContext = GPA("alcSuspendContext");
+	qalcDestroyContext = GPA("alcDestroyContext");
+	qalcGetCurrentContext = GPA("alcGetCurrentContext");
+	qalcGetContextsDevice = GPA("alcGetContextsDevice");
+	qalcOpenDevice = GPA("alcOpenDevice");
+	qalcCloseDevice = GPA("alcCloseDevice");
+	qalcGetError = GPA("alcGetError");
+	qalcIsExtensionPresent = GPA("alcIsExtensionPresent");
+	qalcGetProcAddress = GPA("alcGetProcAddress");
+	qalcGetEnumValue = GPA("alcGetEnumValue");
+	qalcGetString = GPA("alcGetString");
+	qalcGetIntegerv = GPA("alcGetIntegerv");
+
+	if(alinit_fail)
+	{
+		QAL_Shutdown();
+		Com_Printf( " One or more symbols not found\n");
+		return qfalse;
+	}
+
+	return qtrue;
+}
+
+/*
+=================
+QAL_Shutdown
+=================
+*/
+void QAL_Shutdown( void )
+{
+	if(OpenALLib)
+	{
+		OBJFREE(OpenALLib);
+		OpenALLib = NULL;
+	}
+
+	qalEnable = NULL;
+	qalDisable = NULL;
+	qalIsEnabled = NULL;
+	qalGetString = NULL;
+	qalGetBooleanv = NULL;
+	qalGetIntegerv = NULL;
+	qalGetFloatv = NULL;
+	qalGetDoublev = NULL;
+	qalGetBoolean = NULL;
+	qalGetInteger = NULL;
+	qalGetFloat = NULL;
+	qalGetDouble = NULL;
+	qalGetError = NULL;
+	qalIsExtensionPresent = NULL;
+	qalGetProcAddress = NULL;
+	qalGetEnumValue = NULL;
+	qalListenerf = NULL;
+	qalListener3f = NULL;
+	qalListenerfv = NULL;
+	qalListeneri = NULL;
+	qalGetListenerf = NULL;
+	qalGetListener3f = NULL;
+	qalGetListenerfv = NULL;
+	qalGetListeneri = NULL;
+	qalGenSources = NULL;
+	qalDeleteSources = NULL;
+	qalIsSource = NULL;
+	qalSourcef = NULL;
+	qalSource3f = NULL;
+	qalSourcefv = NULL;
+	qalSourcei = NULL;
+	qalGetSourcef = NULL;
+	qalGetSource3f = NULL;
+	qalGetSourcefv = NULL;
+	qalGetSourcei = NULL;
+	qalSourcePlayv = NULL;
+	qalSourceStopv = NULL;
+	qalSourceRewindv = NULL;
+	qalSourcePausev = NULL;
+	qalSourcePlay = NULL;
+	qalSourceStop = NULL;
+	qalSourceRewind = NULL;
+	qalSourcePause = NULL;
+	qalSourceQueueBuffers = NULL;
+	qalSourceUnqueueBuffers = NULL;
+	qalGenBuffers = NULL;
+	qalDeleteBuffers = NULL;
+	qalIsBuffer = NULL;
+	qalBufferData = NULL;
+	qalGetBufferf = NULL;
+	qalGetBufferi = NULL;
+	qalDopplerFactor = NULL;
+	qalDopplerVelocity = NULL;
+	qalDistanceModel = NULL;
+
+	qalcCreateContext = NULL;
+	qalcMakeContextCurrent = NULL;
+	qalcProcessContext = NULL;
+	qalcSuspendContext = NULL;
+	qalcDestroyContext = NULL;
+	qalcGetCurrentContext = NULL;
+	qalcGetContextsDevice = NULL;
+	qalcOpenDevice = NULL;
+	qalcCloseDevice = NULL;
+	qalcGetError = NULL;
+	qalcIsExtensionPresent = NULL;
+	qalcGetProcAddress = NULL;
+	qalcGetEnumValue = NULL;
+	qalcGetString = NULL;
+	qalcGetIntegerv = NULL;
+}
+#else
+qboolean QAL_Init(const char *libname)
+{
+	return qtrue;
+}
+void QAL_Shutdown( void )
+{
+}
+#endif
+#endif

src/client/qal.h

@@ -0,0 +1,246 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+Copyright (C) 2005 Stuart Dalton (badcdev@gmail.com)
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+
+#ifndef __QAL_H__
+#define __QAL_H__
+
+#include "../qcommon/q_shared.h"
+#include "../qcommon/qcommon.h"
+
+#if USE_OPENAL_DLOPEN
+#define AL_NO_PROTOTYPES
+#define ALC_NO_PROTOTYPES
+#endif
+
+#if USE_LOCAL_HEADERS
+#include "../AL/al.h"
+#include "../AL/alc.h"
+#else
+#ifdef _MSC_VER
+  // MSVC users must install the OpenAL SDK which doesn't use the AL/*.h scheme.
+  #include <al.h>
+  #include <alc.h>
+#else
+  #include <AL/al.h>
+  #include <AL/alc.h>
+#endif
+#endif
+
+#if USE_OPENAL_DLOPEN
+extern LPALENABLE qalEnable;
+extern LPALDISABLE qalDisable;
+extern LPALISENABLED qalIsEnabled;
+extern LPALGETSTRING qalGetString;
+extern LPALGETBOOLEANV qalGetBooleanv;
+extern LPALGETINTEGERV qalGetIntegerv;
+extern LPALGETFLOATV qalGetFloatv;
+extern LPALGETDOUBLEV qalGetDoublev;
+extern LPALGETBOOLEAN qalGetBoolean;
+extern LPALGETINTEGER qalGetInteger;
+extern LPALGETFLOAT qalGetFloat;
+extern LPALGETDOUBLE qalGetDouble;
+extern LPALGETERROR qalGetError;
+extern LPALISEXTENSIONPRESENT qalIsExtensionPresent;
+extern LPALGETPROCADDRESS qalGetProcAddress;
+extern LPALGETENUMVALUE qalGetEnumValue;
+extern LPALLISTENERF qalListenerf;
+extern LPALLISTENER3F qalListener3f;
+extern LPALLISTENERFV qalListenerfv;
+extern LPALLISTENERI qalListeneri;
+extern LPALLISTENER3I qalListener3i;
+extern LPALLISTENERIV qalListeneriv;
+extern LPALGETLISTENERF qalGetListenerf;
+extern LPALGETLISTENER3F qalGetListener3f;
+extern LPALGETLISTENERFV qalGetListenerfv;
+extern LPALGETLISTENERI qalGetListeneri;
+extern LPALGETLISTENER3I qalGetListener3i;
+extern LPALGETLISTENERIV qalGetListeneriv;
+extern LPALGENSOURCES qalGenSources;
+extern LPALDELETESOURCES qalDeleteSources;
+extern LPALISSOURCE qalIsSource;
+extern LPALSOURCEF qalSourcef;
+extern LPALSOURCE3F qalSource3f;
+extern LPALSOURCEFV qalSourcefv;
+extern LPALSOURCEI qalSourcei;
+extern LPALSOURCE3I qalSource3i;
+extern LPALSOURCEIV qalSourceiv;
+extern LPALGETSOURCEF qalGetSourcef;
+extern LPALGETSOURCE3F qalGetSource3f;
+extern LPALGETSOURCEFV qalGetSourcefv;
+extern LPALGETSOURCEI qalGetSourcei;
+extern LPALGETSOURCE3I qalGetSource3i;
+extern LPALGETSOURCEIV qalGetSourceiv;
+extern LPALSOURCEPLAYV qalSourcePlayv;
+extern LPALSOURCESTOPV qalSourceStopv;
+extern LPALSOURCEREWINDV qalSourceRewindv;
+extern LPALSOURCEPAUSEV qalSourcePausev;
+extern LPALSOURCEPLAY qalSourcePlay;
+extern LPALSOURCESTOP qalSourceStop;
+extern LPALSOURCEREWIND qalSourceRewind;
+extern LPALSOURCEPAUSE qalSourcePause;
+extern LPALSOURCEQUEUEBUFFERS qalSourceQueueBuffers;
+extern LPALSOURCEUNQUEUEBUFFERS qalSourceUnqueueBuffers;
+extern LPALGENBUFFERS qalGenBuffers;
+extern LPALDELETEBUFFERS qalDeleteBuffers;
+extern LPALISBUFFER qalIsBuffer;
+extern LPALBUFFERDATA qalBufferData;
+extern LPALBUFFERF qalBufferf;
+extern LPALBUFFER3F qalBuffer3f;
+extern LPALBUFFERFV qalBufferfv;
+extern LPALBUFFERF qalBufferi;
+extern LPALBUFFER3F qalBuffer3i;
+extern LPALBUFFERFV qalBufferiv;
+extern LPALGETBUFFERF qalGetBufferf;
+extern LPALGETBUFFER3F qalGetBuffer3f;
+extern LPALGETBUFFERFV qalGetBufferfv;
+extern LPALGETBUFFERI qalGetBufferi;
+extern LPALGETBUFFER3I qalGetBuffer3i;
+extern LPALGETBUFFERIV qalGetBufferiv;
+extern LPALDOPPLERFACTOR qalDopplerFactor;
+extern LPALDOPPLERVELOCITY qalDopplerVelocity;
+extern LPALSPEEDOFSOUND qalSpeedOfSound;
+extern LPALDISTANCEMODEL qalDistanceModel;
+
+extern LPALCCREATECONTEXT qalcCreateContext;
+extern LPALCMAKECONTEXTCURRENT qalcMakeContextCurrent;
+extern LPALCPROCESSCONTEXT qalcProcessContext;
+extern LPALCSUSPENDCONTEXT qalcSuspendContext;
+extern LPALCDESTROYCONTEXT qalcDestroyContext;
+extern LPALCGETCURRENTCONTEXT qalcGetCurrentContext;
+extern LPALCGETCONTEXTSDEVICE qalcGetContextsDevice;
+extern LPALCOPENDEVICE qalcOpenDevice;
+extern LPALCCLOSEDEVICE qalcCloseDevice;
+extern LPALCGETERROR qalcGetError;
+extern LPALCISEXTENSIONPRESENT qalcIsExtensionPresent;
+extern LPALCGETPROCADDRESS qalcGetProcAddress;
+extern LPALCGETENUMVALUE qalcGetEnumValue;
+extern LPALCGETSTRING qalcGetString;
+extern LPALCGETINTEGERV qalcGetIntegerv;
+extern LPALCCAPTUREOPENDEVICE qalcCaptureOpenDevice;
+extern LPALCCAPTURECLOSEDEVICE qalcCaptureCloseDevice;
+extern LPALCCAPTURESTART qalcCaptureStart;
+extern LPALCCAPTURESTOP qalcCaptureStop;
+extern LPALCCAPTURESAMPLES qalcCaptureSamples;
+#else
+#define qalEnable alEnable
+#define qalDisable alDisable
+#define qalIsEnabled alIsEnabled
+#define qalGetString alGetString
+#define qalGetBooleanv alGetBooleanv
+#define qalGetIntegerv alGetIntegerv
+#define qalGetFloatv alGetFloatv
+#define qalGetDoublev alGetDoublev
+#define qalGetBoolean alGetBoolean
+#define qalGetInteger alGetInteger
+#define qalGetFloat alGetFloat
+#define qalGetDouble alGetDouble
+#define qalGetError alGetError
+#define qalIsExtensionPresent alIsExtensionPresent
+#define qalGetProcAddress alGetProcAddress
+#define qalGetEnumValue alGetEnumValue
+#define qalListenerf alListenerf
+#define qalListener3f alListener3f
+#define qalListenerfv alListenerfv
+#define qalListeneri alListeneri
+#define qalListener3i alListener3i
+#define qalListeneriv alListeneriv
+#define qalGetListenerf alGetListenerf
+#define qalGetListener3f alGetListener3f
+#define qalGetListenerfv alGetListenerfv
+#define qalGetListeneri alGetListeneri
+#define qalGetListener3i alGetListener3i
+#define qalGetListeneriv alGetListeneriv
+#define qalGenSources alGenSources
+#define qalDeleteSources alDeleteSources
+#define qalIsSource alIsSource
+#define qalSourcef alSourcef
+#define qalSource3f alSource3f
+#define qalSourcefv alSourcefv
+#define qalSourcei alSourcei
+#define qalSource3i alSource3i
+#define qalSourceiv alSourceiv
+#define qalGetSourcef alGetSourcef
+#define qalGetSource3f alGetSource3f
+#define qalGetSourcefv alGetSourcefv
+#define qalGetSourcei alGetSourcei
+#define qalGetSource3i alGetSource3i
+#define qalGetSourceiv alGetSourceiv
+#define qalSourcePlayv alSourcePlayv
+#define qalSourceStopv alSourceStopv
+#define qalSourceRewindv alSourceRewindv
+#define qalSourcePausev alSourcePausev
+#define qalSourcePlay alSourcePlay
+#define qalSourceStop alSourceStop
+#define qalSourceRewind alSourceRewind
+#define qalSourcePause alSourcePause
+#define qalSourceQueueBuffers alSourceQueueBuffers
+#define qalSourceUnqueueBuffers alSourceUnqueueBuffers
+#define qalGenBuffers alGenBuffers
+#define qalDeleteBuffers alDeleteBuffers
+#define qalIsBuffer alIsBuffer
+#define qalBufferData alBufferData
+#define qalBufferf alBufferf
+#define qalBuffer3f alBuffer3f
+#define qalBufferfv alBufferfv
+#define qalBufferi alBufferi
+#define qalBuffer3i alBuffer3i
+#define qalBufferiv alBufferiv
+#define qalGetBufferf alGetBufferf
+#define qalGetBuffer3f alGetBuffer3f
+#define qalGetBufferfv alGetBufferfv
+#define qalGetBufferi alGetBufferi
+#define qalGetBuffer3i alGetBuffer3i
+#define qalGetBufferiv alGetBufferiv
+#define qalDopplerFactor alDopplerFactor
+#define qalDopplerVelocity alDopplerVelocity
+#define qalSpeedOfSound alSpeedOfSound
+#define qalDistanceModel alDistanceModel
+
+#define qalcCreateContext alcCreateContext
+#define qalcMakeContextCurrent alcMakeContextCurrent
+#define qalcProcessContext alcProcessContext
+#define qalcSuspendContext alcSuspendContext
+#define qalcDestroyContext alcDestroyContext
+#define qalcGetCurrentContext alcGetCurrentContext
+#define qalcGetContextsDevice alcGetContextsDevice
+#define qalcOpenDevice alcOpenDevice
+#define qalcCloseDevice alcCloseDevice
+#define qalcGetError alcGetError
+#define qalcIsExtensionPresent alcIsExtensionPresent
+#define qalcGetProcAddress alcGetProcAddress
+#define qalcGetEnumValue alcGetEnumValue
+#define qalcGetString alcGetString
+#define qalcGetIntegerv alcGetIntegerv
+#define qalcCaptureOpenDevice alcCaptureOpenDevice
+#define qalcCaptureCloseDevice alcCaptureCloseDevice
+#define qalcCaptureStart alcCaptureStart
+#define qalcCaptureStop alcCaptureStop
+#define qalcCaptureSamples alcCaptureSamples
+#endif
+
+qboolean QAL_Init(const char *libname);
+void QAL_Shutdown( void );
+
+#endif	// __QAL_H__

src/client/snd_adpcm.c

@@ -0,0 +1,330 @@
+/***********************************************************
+Copyright 1992 by Stichting Mathematisch Centrum, Amsterdam, The
+Netherlands.
+
+                        All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its 
+documentation for any purpose and without fee is hereby granted, 
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in 
+supporting documentation, and that the names of Stichting Mathematisch
+Centrum or CWI not be used in advertising or publicity pertaining to
+distribution of the software without specific, written prior permission.
+
+STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
+THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
+FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+******************************************************************/
+
+/*
+** Intel/DVI ADPCM coder/decoder.
+**
+** The algorithm for this coder was taken from the IMA Compatability Project
+** proceedings, Vol 2, Number 2; May 1992.
+**
+** Version 1.2, 18-Dec-92.
+*/
+
+#include "snd_local.h"
+
+
+/* Intel ADPCM step variation table */
+static int indexTable[16] = {
+    -1, -1, -1, -1, 2, 4, 6, 8,
+    -1, -1, -1, -1, 2, 4, 6, 8,
+};
+
+static int stepsizeTable[89] = {
+    7, 8, 9, 10, 11, 12, 13, 14, 16, 17,
+    19, 21, 23, 25, 28, 31, 34, 37, 41, 45,
+    50, 55, 60, 66, 73, 80, 88, 97, 107, 118,
+    130, 143, 157, 173, 190, 209, 230, 253, 279, 307,
+    337, 371, 408, 449, 494, 544, 598, 658, 724, 796,
+    876, 963, 1060, 1166, 1282, 1411, 1552, 1707, 1878, 2066,
+    2272, 2499, 2749, 3024, 3327, 3660, 4026, 4428, 4871, 5358,
+    5894, 6484, 7132, 7845, 8630, 9493, 10442, 11487, 12635, 13899,
+    15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794, 32767
+};
+
+   
+void S_AdpcmEncode( short indata[], char outdata[], int len, struct adpcm_state *state ) {
+    short *inp;			/* Input buffer pointer */
+    signed char *outp;		/* output buffer pointer */
+    int val;			/* Current input sample value */
+    int sign;			/* Current adpcm sign bit */
+    int delta;			/* Current adpcm output value */
+    int diff;			/* Difference between val and sample */
+    int step;			/* Stepsize */
+    int valpred;		/* Predicted output value */
+    int vpdiff;			/* Current change to valpred */
+    int index;			/* Current step change index */
+    int outputbuffer;		/* place to keep previous 4-bit value */
+    int bufferstep;		/* toggle between outputbuffer/output */
+
+    outp = (signed char *)outdata;
+    inp = indata;
+
+    valpred = state->sample;
+    index = state->index;
+    step = stepsizeTable[index];
+    
+	outputbuffer = 0;	// quiet a compiler warning
+    bufferstep = 1;
+
+    for ( ; len > 0 ; len-- ) {
+		val = *inp++;
+
+		/* Step 1 - compute difference with previous value */
+		diff = val - valpred;
+		sign = (diff < 0) ? 8 : 0;
+		if ( sign ) diff = (-diff);
+
+		/* Step 2 - Divide and clamp */
+		/* Note:
+		** This code *approximately* computes:
+		**    delta = diff*4/step;
+		**    vpdiff = (delta+0.5)*step/4;
+		** but in shift step bits are dropped. The net result of this is
+		** that even if you have fast mul/div hardware you cannot put it to
+		** good use since the fixup would be too expensive.
+		*/
+		delta = 0;
+		vpdiff = (step >> 3);
+		
+		if ( diff >= step ) {
+			delta = 4;
+			diff -= step;
+			vpdiff += step;
+		}
+		step >>= 1;
+		if ( diff >= step  ) {
+			delta |= 2;
+			diff -= step;
+			vpdiff += step;
+		}
+		step >>= 1;
+		if ( diff >= step ) {
+			delta |= 1;
+			vpdiff += step;
+		}
+
+		/* Step 3 - Update previous value */
+		if ( sign )
+		  valpred -= vpdiff;
+		else
+		  valpred += vpdiff;
+
+		/* Step 4 - Clamp previous value to 16 bits */
+		if ( valpred > 32767 )
+		  valpred = 32767;
+		else if ( valpred < -32768 )
+		  valpred = -32768;
+
+		/* Step 5 - Assemble value, update index and step values */
+		delta |= sign;
+		
+		index += indexTable[delta];
+		if ( index < 0 ) index = 0;
+		if ( index > 88 ) index = 88;
+		step = stepsizeTable[index];
+
+		/* Step 6 - Output value */
+		if ( bufferstep ) {
+			outputbuffer = (delta << 4) & 0xf0;
+		} else {
+			*outp++ = (delta & 0x0f) | outputbuffer;
+		}
+		bufferstep = !bufferstep;
+    }
+
+    /* Output last step, if needed */
+    if ( !bufferstep )
+      *outp++ = outputbuffer;
+    
+    state->sample = valpred;
+    state->index = index;
+}
+
+
+/* static */ void S_AdpcmDecode( const char indata[], short *outdata, int len, struct adpcm_state *state ) {
+    signed char *inp;		/* Input buffer pointer */
+    int outp;			/* output buffer pointer */
+    int sign;			/* Current adpcm sign bit */
+    int delta;			/* Current adpcm output value */
+    int step;			/* Stepsize */
+    int valpred;		/* Predicted value */
+    int vpdiff;			/* Current change to valpred */
+    int index;			/* Current step change index */
+    int inputbuffer;		/* place to keep next 4-bit value */
+    int bufferstep;		/* toggle between inputbuffer/input */
+
+    outp = 0;
+    inp = (signed char *)indata;
+
+    valpred = state->sample;
+    index = state->index;
+    step = stepsizeTable[index];
+
+    bufferstep = 0;
+    inputbuffer = 0;	// quiet a compiler warning
+    for ( ; len > 0 ; len-- ) {
+		
+		/* Step 1 - get the delta value */
+		if ( bufferstep ) {
+			delta = inputbuffer & 0xf;
+		} else {
+			inputbuffer = *inp++;
+			delta = (inputbuffer >> 4) & 0xf;
+		}
+		bufferstep = !bufferstep;
+
+		/* Step 2 - Find new index value (for later) */
+		index += indexTable[delta];
+		if ( index < 0 ) index = 0;
+		if ( index > 88 ) index = 88;
+
+		/* Step 3 - Separate sign and magnitude */
+		sign = delta & 8;
+		delta = delta & 7;
+
+		/* Step 4 - Compute difference and new predicted value */
+		/*
+		** Computes 'vpdiff = (delta+0.5)*step/4', but see comment
+		** in adpcm_coder.
+		*/
+		vpdiff = step >> 3;
+		if ( delta & 4 ) vpdiff += step;
+		if ( delta & 2 ) vpdiff += step>>1;
+		if ( delta & 1 ) vpdiff += step>>2;
+
+		if ( sign )
+		  valpred -= vpdiff;
+		else
+		  valpred += vpdiff;
+
+		/* Step 5 - clamp output value */
+		if ( valpred > 32767 )
+		  valpred = 32767;
+		else if ( valpred < -32768 )
+		  valpred = -32768;
+
+		/* Step 6 - Update step value */
+		step = stepsizeTable[index];
+
+		/* Step 7 - Output value */
+		outdata[outp] = valpred;
+		outp++;
+    }
+
+    state->sample = valpred;
+    state->index = index;
+}
+
+
+/*
+====================
+S_AdpcmMemoryNeeded
+
+Returns the amount of memory (in bytes) needed to store the samples in out internal adpcm format
+====================
+*/
+int S_AdpcmMemoryNeeded( const wavinfo_t *info ) {
+	float	scale;
+	int		scaledSampleCount;
+	int		sampleMemory;
+	int		blockCount;
+	int		headerMemory;
+
+	// determine scale to convert from input sampling rate to desired sampling rate
+	scale = (float)info->rate / dma.speed;
+
+	// calc number of samples at playback sampling rate
+	scaledSampleCount = info->samples / scale;
+
+	// calc memory need to store those samples using ADPCM at 4 bits per sample
+	sampleMemory = scaledSampleCount / 2;
+
+	// calc number of sample blocks needed of PAINTBUFFER_SIZE
+	blockCount = scaledSampleCount / PAINTBUFFER_SIZE;
+	if( scaledSampleCount % PAINTBUFFER_SIZE ) {
+		blockCount++;
+	}
+
+	// calc memory needed to store the block headers
+	headerMemory = blockCount * sizeof(adpcm_state_t);
+
+	return sampleMemory + headerMemory;
+}
+
+
+/*
+====================
+S_AdpcmGetSamples
+====================
+*/
+void S_AdpcmGetSamples(sndBuffer *chunk, short *to) {
+	adpcm_state_t	state;
+	byte			*out;
+
+	// get the starting state from the block header
+	state.index = chunk->adpcm.index;
+	state.sample = chunk->adpcm.sample;
+
+	out = (byte *)chunk->sndChunk;
+	// get samples
+	S_AdpcmDecode((char *) out, to, SND_CHUNK_SIZE_BYTE*2, &state );
+}
+
+
+/*
+====================
+S_AdpcmEncodeSound
+====================
+*/
+void S_AdpcmEncodeSound( sfx_t *sfx, short *samples ) {
+	adpcm_state_t	state;
+	int				inOffset;
+	int				count;
+	int				n;
+	sndBuffer		*newchunk, *chunk;
+	byte			*out;
+
+	inOffset = 0;
+	count = sfx->soundLength;
+	state.index = 0;
+	state.sample = samples[0];
+
+	chunk = NULL;
+	while( count ) {
+		n = count;
+		if( n > SND_CHUNK_SIZE_BYTE*2 ) {
+			n = SND_CHUNK_SIZE_BYTE*2;
+		}
+
+		newchunk = SND_malloc();
+		if (sfx->soundData == NULL) {
+			sfx->soundData = newchunk;
+		} else {
+			chunk->next = newchunk;
+		}
+		chunk = newchunk;
+
+		// output the header
+		chunk->adpcm.index  = state.index;
+		chunk->adpcm.sample = state.sample;
+
+		out = (byte *)chunk->sndChunk;
+
+		// encode the samples
+		S_AdpcmEncode( samples + inOffset, (char *) out, n, &state );
+
+		inOffset += n;
+		count -= n;
+	}
+}

src/client/snd_codec.c

@@ -0,0 +1,234 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+Copyright (C) 2005 Stuart Dalton (badcdev@gmail.com)
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+#include "client.h"
+#include "snd_codec.h"
+
+static snd_codec_t *codecs;
+
+/*
+=================
+S_FileExtension
+=================
+*/
+static char *S_FileExtension(const char *fni)
+{
+	// we should search from the ending to the last '/'
+
+	char *fn = (char *) fni + strlen(fni) - 1;
+	char *eptr = NULL;
+
+	while(*fn != '/' && fn != fni)
+	{
+		if(*fn == '.')
+			eptr = fn;
+		fn--;
+	}
+
+	return eptr;
+}
+
+/*
+=================
+S_FindCodecForFile
+
+Select an appropriate codec for a file based on its extension
+=================
+*/
+static snd_codec_t *S_FindCodecForFile(const char *filename)
+{
+	char *ext = S_FileExtension(filename);
+	snd_codec_t *codec = codecs;
+
+	if(!ext)
+	{
+		// No extension - auto-detect
+		while(codec)
+		{
+			char fn[MAX_QPATH];
+			
+			// there is no extension so we do not need to subtract 4 chars
+			Q_strncpyz(fn, filename, MAX_QPATH);
+			COM_DefaultExtension(fn, MAX_QPATH, codec->ext);
+
+			// Check it exists
+			if(FS_ReadFile(fn, NULL) != -1)
+				return codec;
+
+			// Nope. Next!
+			codec = codec->next;
+		}
+
+		// Nothin'
+		return NULL;
+	}
+
+	while(codec)
+	{
+		if(!Q_stricmp(ext, codec->ext))
+			return codec;
+		codec = codec->next;
+	}
+
+	return NULL;
+}
+
+/*
+=================
+S_CodecInit
+=================
+*/
+void S_CodecInit()
+{
+	codecs = NULL;
+	S_CodecRegister(&wav_codec);
+#if USE_CODEC_VORBIS
+	S_CodecRegister(&ogg_codec);
+#endif
+}
+
+/*
+=================
+S_CodecShutdown
+=================
+*/
+void S_CodecShutdown()
+{
+	codecs = NULL;
+}
+
+/*
+=================
+S_CodecRegister
+=================
+*/
+void S_CodecRegister(snd_codec_t *codec)
+{
+	codec->next = codecs;
+	codecs = codec;
+}
+
+/*
+=================
+S_CodecLoad
+=================
+*/
+void *S_CodecLoad(const char *filename, snd_info_t *info)
+{
+	snd_codec_t *codec;
+	char fn[MAX_QPATH];
+
+	codec = S_FindCodecForFile(filename);
+	if(!codec)
+	{
+		Com_Printf("Unknown extension for %s\n", filename);
+		return NULL;
+	}
+
+	strncpy(fn, filename, sizeof(fn));
+	COM_DefaultExtension(fn, sizeof(fn), codec->ext);
+
+	return codec->load(fn, info);
+}
+
+/*
+=================
+S_CodecOpenStream
+=================
+*/
+snd_stream_t *S_CodecOpenStream(const char *filename)
+{
+	snd_codec_t *codec;
+	char fn[MAX_QPATH];
+
+	codec = S_FindCodecForFile(filename);
+	if(!codec)
+	{
+		Com_Printf("Unknown extension for %s\n", filename);
+		return NULL;
+	}
+
+	strncpy(fn, filename, sizeof(fn));
+	COM_DefaultExtension(fn, sizeof(fn), codec->ext);
+
+	return codec->open(fn);
+}
+
+void S_CodecCloseStream(snd_stream_t *stream)
+{
+	stream->codec->close(stream);
+}
+
+int S_CodecReadStream(snd_stream_t *stream, int bytes, void *buffer)
+{
+	return stream->codec->read(stream, bytes, buffer);
+}
+
+//=======================================================================
+// Util functions (used by codecs)
+
+/*
+=================
+S_CodecUtilOpen
+=================
+*/
+snd_stream_t *S_CodecUtilOpen(const char *filename, snd_codec_t *codec)
+{
+	snd_stream_t *stream;
+	fileHandle_t hnd;
+	int length;
+
+	// Try to open the file
+	length = FS_FOpenFileRead(filename, &hnd, qtrue);
+	if(!hnd)
+	{
+		Com_Printf("Can't read sound file %s\n", filename);
+		return NULL;
+	}
+
+	// Allocate a stream
+	stream = Z_Malloc(sizeof(snd_stream_t));
+	if(!stream)
+	{
+		FS_FCloseFile(hnd);
+		return NULL;
+	}
+
+	// Copy over, return
+	stream->codec = codec;
+	stream->file = hnd;
+	stream->length = length;
+	return stream;
+}
+
+/*
+=================
+S_CodecUtilClose
+=================
+*/
+void S_CodecUtilClose(snd_stream_t *stream)
+{
+	FS_FCloseFile(stream->file);
+	Z_Free(stream);
+}

src/client/snd_codec.h

@@ -0,0 +1,99 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+Copyright (C) 2005 Stuart Dalton (badcdev@gmail.com)
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+#ifndef _SND_CODEC_H_
+#define _SND_CODEC_H_
+
+#include "../qcommon/q_shared.h"
+#include "../qcommon/qcommon.h"
+
+typedef struct snd_info_s
+{
+	int rate;
+	int width;
+	int channels;
+	int samples;
+	int size;
+	int dataofs;
+} snd_info_t;
+
+typedef struct snd_codec_s snd_codec_t;
+
+typedef struct snd_stream_s
+{
+	snd_codec_t *codec;
+	fileHandle_t file;
+	snd_info_t info;
+	int length;
+	int pos;
+	void *ptr;
+} snd_stream_t;
+
+// Codec functions
+typedef void *(*CODEC_LOAD)(const char *filename, snd_info_t *info);
+typedef snd_stream_t *(*CODEC_OPEN)(const char *filename);
+typedef int (*CODEC_READ)(snd_stream_t *stream, int bytes, void *buffer);
+typedef void (*CODEC_CLOSE)(snd_stream_t *stream);
+
+// Codec data structure
+struct snd_codec_s
+{
+	char *ext;
+	CODEC_LOAD load;
+	CODEC_OPEN open;
+	CODEC_READ read;
+	CODEC_CLOSE close;
+	snd_codec_t *next;
+};
+
+// Codec management
+void S_CodecInit( void );
+void S_CodecShutdown( void );
+void S_CodecRegister(snd_codec_t *codec);
+void *S_CodecLoad(const char *filename, snd_info_t *info);
+snd_stream_t *S_CodecOpenStream(const char *filename);
+void S_CodecCloseStream(snd_stream_t *stream);
+int S_CodecReadStream(snd_stream_t *stream, int bytes, void *buffer);
+
+// Util functions (used by codecs)
+snd_stream_t *S_CodecUtilOpen(const char *filename, snd_codec_t *codec);
+void S_CodecUtilClose(snd_stream_t *stream);
+
+// WAV Codec
+extern snd_codec_t wav_codec;
+void *S_WAV_CodecLoad(const char *filename, snd_info_t *info);
+snd_stream_t *S_WAV_CodecOpenStream(const char *filename);
+void S_WAV_CodecCloseStream(snd_stream_t *stream);
+int S_WAV_CodecReadStream(snd_stream_t *stream, int bytes, void *buffer);
+
+// Ogg Vorbis codec
+#ifdef USE_CODEC_VORBIS
+extern snd_codec_t ogg_codec;
+void *S_OGG_CodecLoad(const char *filename, snd_info_t *info);
+snd_stream_t *S_OGG_CodecOpenStream(const char *filename);
+void S_OGG_CodecCloseStream(snd_stream_t *stream);
+int S_OGG_CodecReadStream(snd_stream_t *stream, int bytes, void *buffer);
+#endif // USE_CODEC_VORBIS
+
+#endif // !_SND_CODEC_H_

src/client/snd_codec_ogg.c

@@ -0,0 +1,473 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2005 Stuart Dalton (badcdev@gmail.com)
+Copyright (C) 2005-2006 Joerg Dietrich <dietrich_joerg@gmx.de>
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+// OGG support is enabled by this define
+#if USE_CODEC_VORBIS
+
+// includes for the Q3 sound system
+#include "client.h"
+#include "snd_codec.h"
+
+// includes for the OGG codec
+#include <errno.h>
+#include <vorbis/vorbisfile.h>
+
+// The OGG codec can return the samples in a number of different formats,
+// we use the standard signed short format.
+#define OGG_SAMPLEWIDTH 2
+
+// Q3 OGG codec
+snd_codec_t ogg_codec =
+{
+	".ogg",
+	S_OGG_CodecLoad,
+	S_OGG_CodecOpenStream,
+	S_OGG_CodecReadStream,
+	S_OGG_CodecCloseStream,
+	NULL
+};
+
+// callbacks for vobisfile
+
+// fread() replacement
+size_t S_OGG_Callback_read(void *ptr, size_t size, size_t nmemb, void *datasource)
+{
+	snd_stream_t *stream;
+	int byteSize = 0;
+	int bytesRead = 0;
+	size_t nMembRead = 0;
+
+	// check if input is valid
+	if(!ptr)
+	{
+		errno = EFAULT; 
+		return 0;
+	}
+	
+	if(!(size && nmemb))
+	{
+		// It's not an error, caller just wants zero bytes!
+		errno = 0;
+		return 0;
+	}
+ 
+	if(!datasource)
+	{
+		errno = EBADF; 
+		return 0;
+	}
+	
+	// we use a snd_stream_t in the generic pointer to pass around
+	stream = (snd_stream_t *) datasource;
+
+	// FS_Read does not support multi-byte elements
+	byteSize = nmemb * size;
+
+	// read it with the Q3 function FS_Read()
+	bytesRead = FS_Read(ptr, byteSize, stream->file);
+
+	// update the file position
+	stream->pos += bytesRead;
+
+	// this function returns the number of elements read not the number of bytes
+	nMembRead = bytesRead / size;
+
+	// even if the last member is only read partially
+	// it is counted as a whole in the return value	
+	if(bytesRead % size)
+	{
+		nMembRead++;
+	}
+	
+	return nMembRead;
+}
+
+// fseek() replacement
+int S_OGG_Callback_seek(void *datasource, ogg_int64_t offset, int whence)
+{
+	snd_stream_t *stream;
+	int retVal = 0;
+
+	// check if input is valid
+	if(!datasource)
+	{
+		errno = EBADF; 
+		return -1;
+	}
+
+	// snd_stream_t in the generic pointer
+	stream = (snd_stream_t *) datasource;
+
+	// we must map the whence to its Q3 counterpart
+	switch(whence)
+	{
+		case SEEK_SET :
+		{
+			// set the file position in the actual file with the Q3 function
+			retVal = FS_Seek(stream->file, (long) offset, FS_SEEK_SET);
+
+			// something has gone wrong, so we return here
+			if(!(retVal == 0))
+			{
+			 return retVal;
+			}
+
+			// keep track of file position
+			stream->pos = (int) offset;
+			break;
+		}
+  
+		case SEEK_CUR :
+		{
+			// set the file position in the actual file with the Q3 function
+			retVal = FS_Seek(stream->file, (long) offset, FS_SEEK_CUR);
+
+			// something has gone wrong, so we return here
+			if(!(retVal == 0))
+			{
+			 return retVal;
+			}
+
+			// keep track of file position
+			stream->pos += (int) offset;
+			break;
+		}
+ 
+		case SEEK_END :
+		{
+			// Quake 3 seems to have trouble with FS_SEEK_END 
+			// so we use the file length and FS_SEEK_SET
+
+			// set the file position in the actual file with the Q3 function
+			retVal = FS_Seek(stream->file, (long) stream->length + (long) offset, FS_SEEK_SET);
+
+			// something has gone wrong, so we return here
+			if(!(retVal == 0))
+			{
+			 return retVal;
+			}
+
+			// keep track of file position
+			stream->pos = stream->length + (int) offset;
+			break;
+		}
+  
+		default :
+		{
+			// unknown whence, so we return an error
+			errno = EINVAL;
+			return -1;
+		}
+	}
+
+	// stream->pos shouldn't be smaller than zero or bigger than the filesize
+	stream->pos = (stream->pos < 0) ? 0 : stream->pos;
+	stream->pos = (stream->pos > stream->length) ? stream->length : stream->pos;
+
+	return 0;
+}
+
+// fclose() replacement
+int S_OGG_Callback_close(void *datasource)
+{
+	// we do nothing here and close all things manually in S_OGG_CodecCloseStream()
+	return 0;
+}
+
+// ftell() replacement
+long S_OGG_Callback_tell(void *datasource)
+{
+	// check if input is valid
+	if(!datasource)
+	{
+		errno = EBADF; 
+		return -1;
+	}
+
+	// we keep track of the file position in stream->pos
+	return (long) (((snd_stream_t *) datasource) -> pos);
+}
+
+// the callback structure
+const ov_callbacks S_OGG_Callbacks =
+{
+ &S_OGG_Callback_read,
+ &S_OGG_Callback_seek,
+ &S_OGG_Callback_close,
+ &S_OGG_Callback_tell
+};
+
+/*
+=================
+S_OGG_CodecOpenStream
+=================
+*/
+snd_stream_t *S_OGG_CodecOpenStream(const char *filename)
+{
+	snd_stream_t *stream;
+
+	// OGG codec control structure
+	OggVorbis_File *vf;
+
+	// some variables used to get informations about the OGG 
+	vorbis_info *OGGInfo;
+	ogg_int64_t numSamples;
+
+	// check if input is valid
+	if(!filename)
+	{
+		return NULL;
+	}
+
+	// Open the stream
+	stream = S_CodecUtilOpen(filename, &ogg_codec);
+	if(!stream)
+	{
+		return NULL;
+	}
+
+	// alloctate the OggVorbis_File
+	vf = Z_Malloc(sizeof(OggVorbis_File));
+	if(!vf)
+	{
+		S_CodecUtilClose(stream);
+
+		return NULL;
+	}
+
+	// open the codec with our callbacks and stream as the generic pointer
+	if(ov_open_callbacks(stream, vf, NULL, 0, S_OGG_Callbacks) != 0)
+	{
+		Z_Free(vf);
+
+		S_CodecUtilClose(stream);
+
+		return NULL;
+	}
+
+	// the stream must be seekable
+	if(!ov_seekable(vf))
+	{
+		ov_clear(vf);
+
+		Z_Free(vf);
+
+		S_CodecUtilClose(stream);
+
+		return NULL;
+	}
+ 
+	// we only support OGGs with one substream
+	if(ov_streams(vf) != 1)
+	{
+		ov_clear(vf);
+
+		Z_Free(vf);
+
+		S_CodecUtilClose(stream);
+
+		return NULL;  
+	}
+
+	// get the info about channels and rate
+	OGGInfo = ov_info(vf, 0);
+	if(!OGGInfo)
+	{
+		ov_clear(vf);
+
+		Z_Free(vf);
+
+		S_CodecUtilClose(stream);
+
+		return NULL;  
+	}
+
+	// get the number of sample-frames in the OGG
+	numSamples = ov_pcm_total(vf, 0);
+
+	// fill in the info-structure in the stream
+	stream->info.rate = OGGInfo->rate;
+	stream->info.width = OGG_SAMPLEWIDTH;
+	stream->info.channels = OGGInfo->channels;
+	stream->info.samples = numSamples;
+	stream->info.size = stream->info.samples * stream->info.channels * stream->info.width;
+	stream->info.dataofs = 0;
+
+	// We use stream->pos for the file pointer in the compressed ogg file 
+	stream->pos = 0;
+	
+	// We use the generic pointer in stream for the OGG codec control structure
+	stream->ptr = vf;
+
+	return stream;
+}
+
+/*
+=================
+S_OGG_CodecCloseStream
+=================
+*/
+void S_OGG_CodecCloseStream(snd_stream_t *stream)
+{
+	// check if input is valid
+	if(!stream)
+	{
+		return;
+	}
+	
+	// let the OGG codec cleanup its stuff
+	ov_clear((OggVorbis_File *) stream->ptr);
+
+	// free the OGG codec control struct
+	Z_Free(stream->ptr);
+
+	// close the stream
+	S_CodecUtilClose(stream);
+}
+
+/*
+=================
+S_OGG_CodecReadStream
+=================
+*/
+int S_OGG_CodecReadStream(snd_stream_t *stream, int bytes, void *buffer)
+{
+	// buffer handling
+	int bytesRead, bytesLeft, c;
+	char *bufPtr;
+	
+	// Bitstream for the decoder
+	int BS = 0;
+
+	// big endian machines want their samples in big endian order
+	int IsBigEndian = 0;
+
+#	ifdef Q3_BIG_ENDIAN
+	IsBigEndian = 1;
+#	endif // Q3_BIG_ENDIAN
+
+	// check if input is valid
+	if(!(stream && buffer))
+	{
+		return 0;
+	}
+
+	if(bytes <= 0)
+	{
+		return 0;
+	}
+
+	bytesRead = 0;
+	bytesLeft = bytes;
+	bufPtr = buffer;
+
+	// cycle until we have the requested or all available bytes read
+	while(-1)
+	{
+		// read some bytes from the OGG codec
+		c = ov_read((OggVorbis_File *) stream->ptr, bufPtr, bytesLeft, IsBigEndian, OGG_SAMPLEWIDTH, 1, &BS);
+		
+		// no more bytes are left
+		if(c <= 0)
+		{
+			break;
+		}
+
+		bytesRead += c;
+		bytesLeft -= c;
+		bufPtr += c;
+  
+		// we have enough bytes
+		if(bytesLeft <= 0)
+		{
+			break;
+		}
+	}
+
+	return bytesRead;
+}
+
+/*
+=====================================================================
+S_OGG_CodecLoad
+
+We handle S_OGG_CodecLoad as a special case of the streaming functions 
+where we read the whole stream at once.
+======================================================================
+*/
+void *S_OGG_CodecLoad(const char *filename, snd_info_t *info)
+{
+	snd_stream_t *stream;
+	byte *buffer;
+	int bytesRead;
+	
+	// check if input is valid
+	if(!(filename && info))
+	{
+		return NULL;
+	}
+	
+	// open the file as a stream
+	stream = S_OGG_CodecOpenStream(filename);
+	if(!stream)
+	{
+		return NULL;
+	}
+	
+	// copy over the info
+	info->rate = stream->info.rate;
+	info->width = stream->info.width;
+	info->channels = stream->info.channels;
+	info->samples = stream->info.samples;
+	info->size = stream->info.size;
+	info->dataofs = stream->info.dataofs;
+
+	// allocate a buffer
+	// this buffer must be free-ed by the caller of this function
+    	buffer = Z_Malloc(info->size);
+	if(!buffer)
+	{
+		S_OGG_CodecCloseStream(stream);
+	
+		return NULL;	
+	}
+
+	// fill the buffer
+	bytesRead = S_OGG_CodecReadStream(stream, info->size, buffer);
+	
+	// we don't even have read a single byte
+	if(bytesRead <= 0)
+	{
+		Z_Free(buffer);
+		S_OGG_CodecCloseStream(stream);
+
+		return NULL;	
+	}
+
+	S_OGG_CodecCloseStream(stream);
+	
+	return buffer;
+}
+
+#endif // USE_CODEC_VORBIS

src/client/snd_codec_wav.c

@@ -0,0 +1,295 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+Copyright (C) 2005 Stuart Dalton (badcdev@gmail.com)
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+#include "client.h"
+#include "snd_codec.h"
+
+/*
+=================
+FGetLittleLong
+=================
+*/
+static int FGetLittleLong( fileHandle_t f ) {
+	int		v;
+
+	FS_Read( &v, sizeof(v), f );
+
+	return LittleLong( v);
+}
+
+/*
+=================
+FGetLittleShort
+=================
+*/
+static short FGetLittleShort( fileHandle_t f ) {
+	short	v;
+
+	FS_Read( &v, sizeof(v), f );
+
+	return LittleShort( v);
+}
+
+/*
+=================
+S_ReadChunkInfo
+=================
+*/
+static int S_ReadChunkInfo(fileHandle_t f, char *name)
+{
+	int len, r;
+
+	name[4] = 0;
+
+	r = FS_Read(name, 4, f);
+	if(r != 4)
+		return -1;
+
+	len = FGetLittleLong(f);
+	if( len < 0 ) {
+		Com_Printf( S_COLOR_YELLOW "WARNING: Negative chunk length\n" );
+		return -1;
+	}
+
+	return len;
+}
+
+/*
+=================
+S_FindRIFFChunk
+
+Returns the length of the data in the chunk, or -1 if not found
+=================
+*/
+static int S_FindRIFFChunk( fileHandle_t f, char *chunk ) {
+	char	name[5];
+	int		len;
+
+	while( ( len = S_ReadChunkInfo(f, name) ) >= 0 )
+	{
+		// If this is the right chunk, return
+		if( !Q_strncmp( name, chunk, 4 ) )
+			return len;
+
+		len = PAD( len, 2 );
+
+		// Not the right chunk - skip it
+		FS_Seek( f, len, FS_SEEK_CUR );
+	}
+
+	return -1;
+}
+
+/*
+=================
+S_ByteSwapRawSamples
+=================
+*/
+static void S_ByteSwapRawSamples( int samples, int width, int s_channels, const byte *data ) {
+	int		i;
+
+	if ( width != 2 ) {
+		return;
+	}
+	if ( LittleShort( 256 ) == 256 ) {
+		return;
+	}
+
+	if ( s_channels == 2 ) {
+		samples <<= 1;
+	}
+	for ( i = 0 ; i < samples ; i++ ) {
+		((short *)data)[i] = LittleShort( ((short *)data)[i] );
+	}
+}
+
+/*
+=================
+S_ReadRIFFHeader
+=================
+*/
+static qboolean S_ReadRIFFHeader(fileHandle_t file, snd_info_t *info)
+{
+	char dump[16];
+	int wav_format;
+	int bits;
+	int fmtlen = 0;
+
+	// skip the riff wav header
+	FS_Read(dump, 12, file);
+
+	// Scan for the format chunk
+	if((fmtlen = S_FindRIFFChunk(file, "fmt ")) < 0)
+	{
+		Com_Printf( S_COLOR_RED "ERROR: Couldn't find \"fmt\" chunk\n");
+		return qfalse;
+	}
+
+	// Save the parameters
+	wav_format = FGetLittleShort(file);
+	info->channels = FGetLittleShort(file);
+	info->rate = FGetLittleLong(file);
+	FGetLittleLong(file);
+	FGetLittleShort(file);
+	bits = FGetLittleShort(file);
+
+	if( bits < 8 )
+	{
+	  Com_Printf( S_COLOR_RED "ERROR: Less than 8 bit sound is not supported\n");
+	  return qfalse;
+	}
+
+	info->width = bits / 8;
+	info->dataofs = 0;
+
+	// Skip the rest of the format chunk if required
+	if(fmtlen > 16)
+	{
+		fmtlen -= 16;
+		FS_Seek( file, fmtlen, FS_SEEK_CUR );
+	}
+
+	// Scan for the data chunk
+	if( (info->size = S_FindRIFFChunk(file, "data")) < 0)
+	{
+		Com_Printf( S_COLOR_RED "ERROR: Couldn't find \"data\" chunk\n");
+		return qfalse;
+	}
+	info->samples = (info->size / info->width) / info->channels;
+
+	return qtrue;
+}
+
+// WAV codec
+snd_codec_t wav_codec =
+{
+	".wav",
+	S_WAV_CodecLoad,
+	S_WAV_CodecOpenStream,
+	S_WAV_CodecReadStream,
+	S_WAV_CodecCloseStream,
+	NULL
+};
+
+/*
+=================
+S_WAV_CodecLoad
+=================
+*/
+void *S_WAV_CodecLoad(const char *filename, snd_info_t *info)
+{
+	fileHandle_t file;
+	void *buffer;
+
+	// Try to open the file
+	FS_FOpenFileRead(filename, &file, qtrue);
+	if(!file)
+	{
+		Com_Printf( S_COLOR_RED "ERROR: Could not open \"%s\"\n",
+				filename);
+		return NULL;
+	}
+
+	// Read the RIFF header
+	if(!S_ReadRIFFHeader(file, info))
+	{
+		FS_FCloseFile(file);
+		Com_Printf( S_COLOR_RED "ERROR: Incorrect/unsupported format in \"%s\"\n",
+				filename);
+		return NULL;
+	}
+
+	// Allocate some memory
+	buffer = Z_Malloc(info->size);
+	if(!buffer)
+	{
+		FS_FCloseFile(file);
+		Com_Printf( S_COLOR_RED "ERROR: Out of memory reading \"%s\"\n",
+				filename);
+		return NULL;
+	}
+
+	// Read, byteswap
+	FS_Read(buffer, info->size, file);
+	S_ByteSwapRawSamples(info->samples, info->width, info->channels, (byte *)buffer);
+
+	// Close and return
+	FS_FCloseFile(file);
+	return buffer;
+}
+
+/*
+=================
+S_WAV_CodecOpenStream
+=================
+*/
+snd_stream_t *S_WAV_CodecOpenStream(const char *filename)
+{
+	snd_stream_t *rv;
+
+	// Open
+	rv = S_CodecUtilOpen(filename, &wav_codec);
+	if(!rv)
+		return NULL;
+
+	// Read the RIFF header
+	if(!S_ReadRIFFHeader(rv->file, &rv->info))
+	{
+		S_CodecUtilClose(rv);
+		return NULL;
+	}
+
+	return rv;
+}
+
+/*
+=================
+S_WAV_CodecCloseStream
+=================
+*/
+void S_WAV_CodecCloseStream(snd_stream_t *stream)
+{
+	S_CodecUtilClose(stream);
+}
+
+/*
+=================
+S_WAV_CodecReadStream
+=================
+*/
+int S_WAV_CodecReadStream(snd_stream_t *stream, int bytes, void *buffer)
+{
+	int remaining = stream->info.size - stream->pos;
+	int samples;
+
+	if(remaining <= 0)
+		return 0;
+	if(bytes > remaining)
+		bytes = remaining;
+	stream->pos += bytes;
+	samples = (bytes / stream->info.width) / stream->info.channels;
+	FS_Read(buffer, bytes, stream->file);
+	S_ByteSwapRawSamples(samples, stream->info.width, stream->info.channels, buffer);
+	return bytes;
+}

src/client/snd_local.h

@@ -0,0 +1,244 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+// snd_local.h -- private sound definations
+
+
+#include "../qcommon/q_shared.h"
+#include "../qcommon/qcommon.h"
+#include "snd_public.h"
+
+#define	PAINTBUFFER_SIZE		4096					// this is in samples
+
+#define SND_CHUNK_SIZE			1024					// samples
+#define SND_CHUNK_SIZE_FLOAT	(SND_CHUNK_SIZE/2)		// floats
+#define SND_CHUNK_SIZE_BYTE		(SND_CHUNK_SIZE*2)		// floats
+
+typedef struct {
+	int			left;	// the final values will be clamped to +/- 0x00ffff00 and shifted down
+	int			right;
+} portable_samplepair_t;
+
+typedef struct adpcm_state {
+    short	sample;		/* Previous output value */
+    char	index;		/* Index into stepsize table */
+} adpcm_state_t;
+
+typedef	struct sndBuffer_s {
+	short					sndChunk[SND_CHUNK_SIZE];
+	struct sndBuffer_s		*next;
+    int						size;
+	adpcm_state_t			adpcm;
+} sndBuffer;
+
+typedef struct sfx_s {
+	sndBuffer		*soundData;
+	qboolean		defaultSound;			// couldn't be loaded, so use buzz
+	qboolean		inMemory;				// not in Memory
+	qboolean		soundCompressed;		// not in Memory
+	int				soundCompressionMethod;	
+	int 			soundLength;
+	char 			soundName[MAX_QPATH];
+	int				lastTimeUsed;
+	struct sfx_s	*next;
+} sfx_t;
+
+typedef struct {
+	int			channels;
+	int			samples;				// mono samples in buffer
+	int			submission_chunk;		// don't mix less than this #
+	int			samplebits;
+	int			speed;
+	byte		*buffer;
+} dma_t;
+
+#define START_SAMPLE_IMMEDIATE	0x7fffffff
+
+#define MAX_DOPPLER_SCALE 50.0f //arbitrary
+
+typedef struct loopSound_s {
+	vec3_t		origin;
+	vec3_t		velocity;
+	sfx_t		*sfx;
+	int			mergeFrame;
+	qboolean	active;
+	qboolean	kill;
+	qboolean	doppler;
+	float		dopplerScale;
+	float		oldDopplerScale;
+	int			framenum;
+} loopSound_t;
+
+typedef struct
+{
+	int			allocTime;
+	int			startSample;	// START_SAMPLE_IMMEDIATE = set immediately on next mix
+	int			entnum;			// to allow overriding a specific sound
+	int			entchannel;		// to allow overriding a specific sound
+	int			leftvol;		// 0-255 volume after spatialization
+	int			rightvol;		// 0-255 volume after spatialization
+	int			master_vol;		// 0-255 volume before spatialization
+	float		dopplerScale;
+	float		oldDopplerScale;
+	vec3_t		origin;			// only use if fixed_origin is set
+	qboolean	fixed_origin;	// use origin instead of fetching entnum's origin
+	sfx_t		*thesfx;		// sfx structure
+	qboolean	doppler;
+} channel_t;
+
+
+#define	WAV_FORMAT_PCM		1
+
+
+typedef struct {
+	int			format;
+	int			rate;
+	int			width;
+	int			channels;
+	int			samples;
+	int			dataofs;		// chunk starts this many bytes from file start
+} wavinfo_t;
+
+// Interface between Q3 sound "api" and the sound backend
+typedef struct
+{
+	void (*Shutdown)(void);
+	void (*StartSound)( vec3_t origin, int entnum, int entchannel, sfxHandle_t sfx );
+	void (*StartLocalSound)( sfxHandle_t sfx, int channelNum );
+	void (*StartBackgroundTrack)( const char *intro, const char *loop );
+	void (*StopBackgroundTrack)( void );
+	void (*RawSamples)(int samples, int rate, int width, int channels, const byte *data, float volume);
+	void (*StopAllSounds)( void );
+	void (*ClearLoopingSounds)( qboolean killall );
+	void (*AddLoopingSound)( int entityNum, const vec3_t origin, const vec3_t velocity, sfxHandle_t sfx );
+	void (*AddRealLoopingSound)( int entityNum, const vec3_t origin, const vec3_t velocity, sfxHandle_t sfx );
+	void (*StopLoopingSound)(int entityNum );
+	void (*Respatialize)( int entityNum, const vec3_t origin, vec3_t axis[3], int inwater );
+	void (*UpdateEntityPosition)( int entityNum, const vec3_t origin );
+	void (*Update)( void );
+	void (*DisableSounds)( void );
+	void (*BeginRegistration)( void );
+	sfxHandle_t (*RegisterSound)( const char *sample, qboolean compressed );
+	void (*ClearSoundBuffer)( void );
+	void (*SoundInfo)( void );
+	void (*SoundList)( void );
+} soundInterface_t;
+
+
+/*
+====================================================================
+
+  SYSTEM SPECIFIC FUNCTIONS
+
+====================================================================
+*/
+
+// initializes cycling through a DMA buffer and returns information on it
+qboolean SNDDMA_Init(void);
+
+// gets the current DMA position
+int		SNDDMA_GetDMAPos(void);
+
+// shutdown the DMA xfer.
+void	SNDDMA_Shutdown(void);
+
+void	SNDDMA_BeginPainting (void);
+
+void	SNDDMA_Submit(void);
+
+//====================================================================
+
+#define	MAX_CHANNELS			96
+
+extern	channel_t   s_channels[MAX_CHANNELS];
+extern	channel_t   loop_channels[MAX_CHANNELS];
+extern	int		numLoopChannels;
+
+extern	int		s_paintedtime;
+extern	int		s_rawend;
+extern	vec3_t	listener_forward;
+extern	vec3_t	listener_right;
+extern	vec3_t	listener_up;
+extern	dma_t	dma;
+
+#define	MAX_RAW_SAMPLES	16384
+extern	portable_samplepair_t	s_rawsamples[MAX_RAW_SAMPLES];
+
+extern cvar_t *s_volume;
+extern cvar_t *s_musicVolume;
+extern cvar_t *s_doppler;
+
+extern cvar_t *s_testsound;
+
+qboolean S_LoadSound( sfx_t *sfx );
+
+void		SND_free(sndBuffer *v);
+sndBuffer*	SND_malloc( void );
+void		SND_setup( void );
+
+void S_PaintChannels(int endtime);
+
+void S_memoryLoad(sfx_t *sfx);
+portable_samplepair_t *S_GetRawSamplePointer( void );
+
+// spatializes a channel
+void S_Spatialize(channel_t *ch);
+
+// adpcm functions
+int  S_AdpcmMemoryNeeded( const wavinfo_t *info );
+void S_AdpcmEncodeSound( sfx_t *sfx, short *samples );
+void S_AdpcmGetSamples(sndBuffer *chunk, short *to);
+
+// wavelet function
+
+#define SENTINEL_MULAW_ZERO_RUN 127
+#define SENTINEL_MULAW_FOUR_BIT_RUN 126
+
+void S_FreeOldestSound( void );
+
+#define	NXStream byte
+
+void encodeWavelet(sfx_t *sfx, short *packets);
+void decodeWavelet( sndBuffer *stream, short *packets);
+
+void encodeMuLaw( sfx_t *sfx, short *packets);
+extern short mulawToShort[256];
+
+extern short *sfxScratchBuffer;
+extern sfx_t *sfxScratchPointer;
+extern int	   sfxScratchIndex;
+
+qboolean S_Base_Init( soundInterface_t *si );
+
+// OpenAL stuff
+typedef enum
+{
+	SRCPRI_AMBIENT = 0,	// Ambient sound effects
+	SRCPRI_ENTITY,			// Entity sound effects
+	SRCPRI_ONESHOT,			// One-shot sounds
+	SRCPRI_LOCAL,				// Local sounds
+	SRCPRI_STREAM				// Streams (music, cutscenes)
+} alSrcPriority_t;
+
+typedef int srcHandle_t;
+
+qboolean S_AL_Init( soundInterface_t *si );

src/client/snd_main.c

@@ -0,0 +1,438 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+Copyright (C) 2005 Stuart Dalton (badcdev@gmail.com)
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Foobar; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+#include "client.h"
+#include "snd_codec.h"
+#include "snd_local.h"
+#include "snd_public.h"
+
+cvar_t *s_volume;
+cvar_t *s_musicVolume;
+cvar_t *s_doppler;
+cvar_t *s_backend;
+
+static soundInterface_t si;
+
+/*
+=================
+S_ValidateInterface
+=================
+*/
+static qboolean S_ValidSoundInterface( soundInterface_t *si )
+{
+	if( !si->Shutdown ) return qfalse;
+	if( !si->StartSound ) return qfalse;
+	if( !si->StartLocalSound ) return qfalse;
+	if( !si->StartBackgroundTrack ) return qfalse;
+	if( !si->StopBackgroundTrack ) return qfalse;
+	if( !si->RawSamples ) return qfalse;
+	if( !si->StopAllSounds ) return qfalse;
+	if( !si->ClearLoopingSounds ) return qfalse;
+	if( !si->AddLoopingSound ) return qfalse;
+	if( !si->AddRealLoopingSound ) return qfalse;
+	if( !si->StopLoopingSound ) return qfalse;
+	if( !si->Respatialize ) return qfalse;
+	if( !si->UpdateEntityPosition ) return qfalse;
+	if( !si->Update ) return qfalse;
+	if( !si->DisableSounds ) return qfalse;
+	if( !si->BeginRegistration ) return qfalse;
+	if( !si->RegisterSound ) return qfalse;
+	if( !si->ClearSoundBuffer ) return qfalse;
+	if( !si->SoundInfo ) return qfalse;
+	if( !si->SoundList ) return qfalse;
+
+	return qtrue;
+}
+
+/*
+=================
+S_StartSound
+=================
+*/
+void S_StartSound( vec3_t origin, int entnum, int entchannel, sfxHandle_t sfx )
+{
+	if( si.StartSound ) {
+		si.StartSound( origin, entnum, entchannel, sfx );
+	}
+}
+
+/*
+=================
+S_StartLocalSound
+=================
+*/
+void S_StartLocalSound( sfxHandle_t sfx, int channelNum )
+{
+	if( si.StartLocalSound ) {
+		si.StartLocalSound( sfx, channelNum );
+	}
+}
+
+/*
+=================
+S_StartBackgroundTrack
+=================
+*/
+void S_StartBackgroundTrack( const char *intro, const char *loop )
+{
+	if( si.StartBackgroundTrack ) {
+		si.StartBackgroundTrack( intro, loop );
+	}
+}
+
+/*
+=================
+S_StopBackgroundTrack
+=================
+*/
+void S_StopBackgroundTrack( void )
+{
+	if( si.StopBackgroundTrack ) {
+		si.StopBackgroundTrack( );
+	}
+}
+
+/*
+=================
+S_RawSamples
+=================
+*/
+void S_RawSamples (int samples, int rate, int width, int channels,
+		   const byte *data, float volume)
+{
+	if( si.RawSamples ) {
+		si.RawSamples( samples, rate, width, channels, data, volume );
+	}
+}
+
+/*
+=================
+S_StopAllSounds
+=================
+*/
+void S_StopAllSounds( void )
+{
+	if( si.StopAllSounds ) {
+		si.StopAllSounds( );
+	}
+}
+
+/*
+=================
+S_ClearLoopingSounds
+=================
+*/
+void S_ClearLoopingSounds( qboolean killall )
+{
+	if( si.ClearLoopingSounds ) {
+		si.ClearLoopingSounds( killall );
+	}
+}
+
+/*
+=================
+S_AddLoopingSound
+=================
+*/
+void S_AddLoopingSound( int entityNum, const vec3_t origin,
+		const vec3_t velocity, sfxHandle_t sfx )
+{
+	if( si.AddLoopingSound ) {
+		si.AddLoopingSound( entityNum, origin, velocity, sfx );
+	}
+}
+
+/*
+=================
+S_AddRealLoopingSound
+=================
+*/
+void S_AddRealLoopingSound( int entityNum, const vec3_t origin,
+		const vec3_t velocity, sfxHandle_t sfx )
+{
+	if( si.AddRealLoopingSound ) {
+		si.AddRealLoopingSound( entityNum, origin, velocity, sfx );
+	}
+}
+
+/*
+=================
+S_StopLoopingSound
+=================
+*/
+void S_StopLoopingSound( int entityNum )
+{
+	if( si.StopLoopingSound ) {
+		si.StopLoopingSound( entityNum );
+	}
+}
+
+/*
+=================
+S_Respatialize
+=================
+*/
+void S_Respatialize( int entityNum, const vec3_t origin,
+		vec3_t axis[3], int inwater )
+{
+	if( si.Respatialize ) {
+		si.Respatialize( entityNum, origin, axis, inwater );
+	}
+}
+
+/*
+=================
+S_UpdateEntityPosition
+=================
+*/
+void S_UpdateEntityPosition( int entityNum, const vec3_t origin )
+{
+	if( si.UpdateEntityPosition ) {
+		si.UpdateEntityPosition( entityNum, origin );
+	}
+}
+
+/*
+=================
+S_Update
+=================
+*/
+void S_Update( void )
+{
+	if( si.Update ) {
+		si.Update( );
+	}
+}
+
+/*
+=================
+S_DisableSounds
+=================
+*/
+void S_DisableSounds( void )
+{
+	if( si.DisableSounds ) {
+		si.DisableSounds( );
+	}
+}
+
+/*
+=================
+S_BeginRegistration
+=================
+*/
+void S_BeginRegistration( void )
+{
+	if( si.BeginRegistration ) {
+		si.BeginRegistration( );
+	}
+}
+
+/*
+=================
+S_RegisterSound
+=================
+*/
+sfxHandle_t	S_RegisterSound( const char *sample, qboolean compressed )
+{
+	if( si.RegisterSound ) {
+		return si.RegisterSound( sample, compressed );
+	} else {
+		return 0;
+	}
+}
+
+/*
+=================
+S_ClearSoundBuffer
+=================
+*/
+void S_ClearSoundBuffer( void )
+{
+	if( si.ClearSoundBuffer ) {
+		si.ClearSoundBuffer( );
+	}
+}
+
+/*
+=================
+S_SoundInfo
+=================
+*/
+void S_SoundInfo( void )
+{
+	if( si.SoundInfo ) {
+		si.SoundInfo( );
+	}
+}
+
+/*
+=================
+S_SoundList
+=================
+*/
+void S_SoundList( void )
+{
+	if( si.SoundList ) {
+		si.SoundList( );
+	}
+}
+
+//=============================================================================
+
+/*
+=================
+S_Play_f
+=================
+*/
+void S_Play_f( void ) {
+	int 		i;
+	sfxHandle_t	h;
+	char		name[256];
+
+	if( !si.RegisterSound || !si.StartLocalSound ) {
+		return;
+	}
+
+	i = 1;
+	while ( i<Cmd_Argc() ) {
+		if ( !Q_strrchr(Cmd_Argv(i), '.') ) {
+			Com_sprintf( name, sizeof(name), "%s.wav", Cmd_Argv(1) );
+		} else {
+			Q_strncpyz( name, Cmd_Argv(i), sizeof(name) );
+		}
+		h = si.RegisterSound( name, qfalse );
+		if( h ) {
+			si.StartLocalSound( h, CHAN_LOCAL_SOUND );
+		}
+		i++;
+	}
+}
+
+/*
+=================
+S_Music_f
+=================
+*/
+void S_Music_f( void ) {
+	int		c;
+
+	if( !si.StartBackgroundTrack ) {
+		return;
+	}
+
+	c = Cmd_Argc();
+
+	if ( c == 2 ) {
+		si.StartBackgroundTrack( Cmd_Argv(1), NULL );
+	} else if ( c == 3 ) {
+		si.StartBackgroundTrack( Cmd_Argv(1), Cmd_Argv(2) );
+	} else {
+		Com_Printf ("music <musicfile> [loopfile]\n");
+		return;
+	}
+
+}
+
+//=============================================================================
+
+/*
+=================
+S_Init
+=================
+*/
+void S_Init( void )
+{
+	cvar_t		*cv;
+	qboolean	started = qfalse;
+
+	Com_Printf( "------ Initializing Sound ------\n" );
+
+	s_volume = Cvar_Get( "s_volume", "0.8", CVAR_ARCHIVE );
+	s_musicVolume = Cvar_Get( "s_musicvolume", "0.25", CVAR_ARCHIVE );
+	s_doppler = Cvar_Get( "s_doppler", "1", CVAR_ARCHIVE );
+	s_backend = Cvar_Get( "s_backend", "", CVAR_ROM );
+
+	cv = Cvar_Get( "s_initsound", "1", 0 );
+	if( !cv->integer ) {
+		Com_Printf( "Sound disabled.\n" );
+	} else {
+
+		S_CodecInit( );
+
+		Cmd_AddCommand( "play", S_Play_f );
+		Cmd_AddCommand( "music", S_Music_f );
+		Cmd_AddCommand( "s_list", S_SoundList );
+		Cmd_AddCommand( "s_stop", S_StopAllSounds );
+		Cmd_AddCommand( "s_info", S_SoundInfo );
+
+		cv = Cvar_Get( "s_useOpenAL", "0", CVAR_ARCHIVE );
+		if( cv->integer ) {
+			//OpenAL
+			started = S_AL_Init( &si );
+			Cvar_Set( "s_backend", "OpenAL" );
+		}
+
+		if( !started ) {
+			started = S_Base_Init( &si );
+			Cvar_Set( "s_backend", "base" );
+		}
+
+		if( started ) {
+			if( !S_ValidSoundInterface( &si ) ) {
+				Com_Error( ERR_FATAL, "Sound interface invalid." );
+			}
+
+			S_SoundInfo( );
+			Com_Printf( "Sound initialization successful.\n" );
+		} else {
+			Com_Printf( "Sound initialization failed.\n" );
+		}
+	}
+
+	Com_Printf( "--------------------------------\n");
+}
+
+/*
+=================
+S_Shutdown
+=================
+*/
+void S_Shutdown( void )
+{
+	if( si.Shutdown ) {
+		si.Shutdown( );
+	}
+
+	Com_Memset( &si, 0, sizeof( soundInterface_t ) );
+
+	Cmd_RemoveCommand( "play" );
+	Cmd_RemoveCommand( "music");
+	Cmd_RemoveCommand( "s_list" );
+	Cmd_RemoveCommand( "s_stop" );
+	Cmd_RemoveCommand( "s_info" );
+
+	S_CodecShutdown( );
+}
+

src/client/snd_mem.c

@@ -0,0 +1,266 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+/*****************************************************************************
+ * name:		snd_mem.c
+ *
+ * desc:		sound caching
+ *
+ * $Archive: /MissionPack/code/client/snd_mem.c $
+ *
+ *****************************************************************************/
+
+#include "snd_local.h"
+#include "snd_codec.h"
+
+#define DEF_COMSOUNDMEGS "8"
+
+/*
+===============================================================================
+
+memory management
+
+===============================================================================
+*/
+
+static	sndBuffer	*buffer = NULL;
+static	sndBuffer	*freelist = NULL;
+static	int inUse = 0;
+static	int totalInUse = 0;
+
+short *sfxScratchBuffer = NULL;
+sfx_t *sfxScratchPointer = NULL;
+int	   sfxScratchIndex = 0;
+
+void	SND_free(sndBuffer *v) {
+	*(sndBuffer **)v = freelist;
+	freelist = (sndBuffer*)v;
+	inUse += sizeof(sndBuffer);
+}
+
+sndBuffer*	SND_malloc(void) {
+	sndBuffer *v;
+redo:
+	if (freelist == NULL) {
+		S_FreeOldestSound();
+		goto redo;
+	}
+
+	inUse -= sizeof(sndBuffer);
+	totalInUse += sizeof(sndBuffer);
+
+	v = freelist;
+	freelist = *(sndBuffer **)freelist;
+	v->next = NULL;
+	return v;
+}
+
+void SND_setup(void) {
+	sndBuffer *p, *q;
+	cvar_t	*cv;
+	int scs;
+
+	cv = Cvar_Get( "com_soundMegs", DEF_COMSOUNDMEGS, CVAR_LATCH | CVAR_ARCHIVE );
+
+	scs = (cv->integer*1536);
+
+	buffer = malloc(scs*sizeof(sndBuffer) );
+	// allocate the stack based hunk allocator
+	sfxScratchBuffer = malloc(SND_CHUNK_SIZE * sizeof(short) * 4);	//Hunk_Alloc(SND_CHUNK_SIZE * sizeof(short) * 4);
+	sfxScratchPointer = NULL;
+
+	inUse = scs*sizeof(sndBuffer);
+	p = buffer;;
+	q = p + scs;
+	while (--q > p)
+		*(sndBuffer **)q = q-1;
+	
+	*(sndBuffer **)q = NULL;
+	freelist = p + scs - 1;
+
+	Com_Printf("Sound memory manager started\n");
+}
+
+/*
+================
+ResampleSfx
+
+resample / decimate to the current source rate
+================
+*/
+static void ResampleSfx( sfx_t *sfx, int inrate, int inwidth, byte *data, qboolean compressed ) {
+	int		outcount;
+	int		srcsample;
+	float	stepscale;
+	int		i;
+	int		sample, samplefrac, fracstep;
+	int			part;
+	sndBuffer	*chunk;
+	
+	stepscale = (float)inrate / dma.speed;	// this is usually 0.5, 1, or 2
+
+	outcount = sfx->soundLength / stepscale;
+	sfx->soundLength = outcount;
+
+	samplefrac = 0;
+	fracstep = stepscale * 256;
+	chunk = sfx->soundData;
+
+	for (i=0 ; i<outcount ; i++)
+	{
+		srcsample = samplefrac >> 8;
+		samplefrac += fracstep;
+		if( inwidth == 2 ) {
+			sample = ( ((short *)data)[srcsample] );
+		} else {
+			sample = (int)( (unsigned char)(data[srcsample]) - 128) << 8;
+		}
+		part  = (i&(SND_CHUNK_SIZE-1));
+		if (part == 0) {
+			sndBuffer	*newchunk;
+			newchunk = SND_malloc();
+			if (chunk == NULL) {
+				sfx->soundData = newchunk;
+			} else {
+				chunk->next = newchunk;
+			}
+			chunk = newchunk;
+		}
+
+		chunk->sndChunk[part] = sample;
+	}
+}
+
+/*
+================
+ResampleSfx
+
+resample / decimate to the current source rate
+================
+*/
+static int ResampleSfxRaw( short *sfx, int inrate, int inwidth, int samples, byte *data ) {
+	int			outcount;
+	int			srcsample;
+	float		stepscale;
+	int			i;
+	int			sample, samplefrac, fracstep;
+	
+	stepscale = (float)inrate / dma.speed;	// this is usually 0.5, 1, or 2
+
+	outcount = samples / stepscale;
+
+	samplefrac = 0;
+	fracstep = stepscale * 256;
+
+	for (i=0 ; i<outcount ; i++)
+	{
+		srcsample = samplefrac >> 8;
+		samplefrac += fracstep;
+		if( inwidth == 2 ) {
+			sample = LittleShort ( ((short *)data)[srcsample] );
+		} else {
+			sample = (int)( (unsigned char)(data[srcsample]) - 128) << 8;
+		}
+		sfx[i] = sample;
+	}
+	return outcount;
+}
+
+//=============================================================================
+
+/*
+==============
+S_LoadSound
+
+The filename may be different than sfx->name in the case
+of a forced fallback of a player specific sound
+==============
+*/
+qboolean S_LoadSound( sfx_t *sfx )
+{
+	byte	*data;
+	short	*samples;
+	snd_info_t	info;
+//	int		size;
+
+	// player specific sounds are never directly loaded
+	if ( sfx->soundName[0] == '*') {
+		return qfalse;
+	}
+
+	// load it in
+	data = S_CodecLoad(sfx->soundName, &info);
+	if(!data)
+		return qfalse;
+
+	if ( info.width == 1 ) {
+		Com_DPrintf(S_COLOR_YELLOW "WARNING: %s is a 8 bit wav file\n", sfx->soundName);
+	}
+
+	if ( info.rate != 22050 ) {
+		Com_DPrintf(S_COLOR_YELLOW "WARNING: %s is not a 22kHz wav file\n", sfx->soundName);
+	}
+
+	samples = Hunk_AllocateTempMemory(info.samples * sizeof(short) * 2);
+
+	sfx->lastTimeUsed = Com_Milliseconds()+1;
+
+	// each of these compression schemes works just fine
+	// but the 16bit quality is much nicer and with a local
+	// install assured we can rely upon the sound memory
+	// manager to do the right thing for us and page
+	// sound in as needed
+
+	if( sfx->soundCompressed == qtrue) {
+		sfx->soundCompressionMethod = 1;
+		sfx->soundData = NULL;
+		sfx->soundLength = ResampleSfxRaw( samples, info.rate, info.width, info.samples, data + info.dataofs );
+		S_AdpcmEncodeSound(sfx, samples);
+#if 0
+	} else if (info.samples>(SND_CHUNK_SIZE*16) && info.width >1) {
+		sfx->soundCompressionMethod = 3;
+		sfx->soundData = NULL;
+		sfx->soundLength = ResampleSfxRaw( samples, info.rate, info.width, info.samples, (data + info.dataofs) );
+		encodeMuLaw( sfx, samples);
+	} else if (info.samples>(SND_CHUNK_SIZE*6400) && info.width >1) {
+		sfx->soundCompressionMethod = 2;
+		sfx->soundData = NULL;
+		sfx->soundLength = ResampleSfxRaw( samples, info.rate, info.width, info.samples, (data + info.dataofs) );
+		encodeWavelet( sfx, samples);
+#endif
+	} else {
+		sfx->soundCompressionMethod = 0;
+		sfx->soundLength = info.samples;
+		sfx->soundData = NULL;
+		ResampleSfx( sfx, info.rate, info.width, data + info.dataofs, qfalse );
+	}
+	
+	Hunk_FreeTempMemory(samples);
+	Z_Free(data);
+
+	return qtrue;
+}
+
+void S_DisplayFreeMemory(void) {
+	Com_Printf("%d bytes free sound buffer memory, %d total used\n", inUse, totalInUse);
+}

src/client/snd_mix.c

@@ -0,0 +1,752 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+// snd_mix.c -- portable code to mix sounds for snd_dma.c
+
+#include "client.h"
+#include "snd_local.h"
+#if idppc_altivec && !defined(MACOS_X)
+#include <altivec.h>
+#endif
+
+static portable_samplepair_t paintbuffer[PAINTBUFFER_SIZE];
+static int snd_vol;
+
+// bk001119 - these not static, required by unix/snd_mixa.s
+int*     snd_p;  
+int      snd_linear_count;
+short*   snd_out;
+
+#if	!id386                                        // if configured not to use asm
+
+void S_WriteLinearBlastStereo16 (void)
+{
+	int		i;
+	int		val;
+
+	for (i=0 ; i<snd_linear_count ; i+=2)
+	{
+		val = snd_p[i]>>8;
+		if (val > 0x7fff)
+			snd_out[i] = 0x7fff;
+		else if (val < -32768)
+			snd_out[i] = -32768;
+		else
+			snd_out[i] = val;
+
+		val = snd_p[i+1]>>8;
+		if (val > 0x7fff)
+			snd_out[i+1] = 0x7fff;
+		else if (val < -32768)
+			snd_out[i+1] = -32768;
+		else
+			snd_out[i+1] = val;
+	}
+}
+#elif defined(__GNUC__)
+// uses snd_mixa.s
+void S_WriteLinearBlastStereo16 (void);
+#else
+
+__declspec( naked ) void S_WriteLinearBlastStereo16 (void)
+{
+	__asm {
+
+ push edi
+ push ebx
+ mov ecx,ds:dword ptr[snd_linear_count]
+ mov ebx,ds:dword ptr[snd_p]
+ mov edi,ds:dword ptr[snd_out]
+LWLBLoopTop:
+ mov eax,ds:dword ptr[-8+ebx+ecx*4]
+ sar eax,8
+ cmp eax,07FFFh
+ jg LClampHigh
+ cmp eax,0FFFF8000h
+ jnl LClampDone
+ mov eax,0FFFF8000h
+ jmp LClampDone
+LClampHigh:
+ mov eax,07FFFh
+LClampDone:
+ mov edx,ds:dword ptr[-4+ebx+ecx*4]
+ sar edx,8
+ cmp edx,07FFFh
+ jg LClampHigh2
+ cmp edx,0FFFF8000h
+ jnl LClampDone2
+ mov edx,0FFFF8000h
+ jmp LClampDone2
+LClampHigh2:
+ mov edx,07FFFh
+LClampDone2:
+ shl edx,16
+ and eax,0FFFFh
+ or edx,eax
+ mov ds:dword ptr[-4+edi+ecx*2],edx
+ sub ecx,2
+ jnz LWLBLoopTop
+ pop ebx
+ pop edi
+ ret
+	}
+}
+
+#endif
+
+void S_TransferStereo16 (unsigned long *pbuf, int endtime)
+{
+	int		lpos;
+	int		ls_paintedtime;
+	
+	snd_p = (int *) paintbuffer;
+	ls_paintedtime = s_paintedtime;
+
+	while (ls_paintedtime < endtime)
+	{
+	// handle recirculating buffer issues
+		lpos = ls_paintedtime & ((dma.samples>>1)-1);
+
+		snd_out = (short *) pbuf + (lpos<<1);
+
+		snd_linear_count = (dma.samples>>1) - lpos;
+		if (ls_paintedtime + snd_linear_count > endtime)
+			snd_linear_count = endtime - ls_paintedtime;
+
+		snd_linear_count <<= 1;
+
+	// write a linear blast of samples
+		S_WriteLinearBlastStereo16 ();
+
+		snd_p += snd_linear_count;
+		ls_paintedtime += (snd_linear_count>>1);
+
+		if( CL_VideoRecording( ) )
+			CL_WriteAVIAudioFrame( (byte *)snd_out, snd_linear_count << 1 );
+	}
+}
+
+/*
+===================
+S_TransferPaintBuffer
+
+===================
+*/
+void S_TransferPaintBuffer(int endtime)
+{
+	int 	out_idx;
+	int 	count;
+	int 	out_mask;
+	int 	*p;
+	int 	step;
+	int		val;
+	unsigned long *pbuf;
+
+	pbuf = (unsigned long *)dma.buffer;
+
+
+	if ( s_testsound->integer ) {
+		int		i;
+		int		count;
+
+		// write a fixed sine wave
+		count = (endtime - s_paintedtime);
+		for (i=0 ; i<count ; i++)
+			paintbuffer[i].left = paintbuffer[i].right = sin((s_paintedtime+i)*0.1)*20000*256;
+	}
+
+
+	if (dma.samplebits == 16 && dma.channels == 2)
+	{	// optimized case
+		S_TransferStereo16 (pbuf, endtime);
+	}
+	else
+	{	// general case
+		p = (int *) paintbuffer;
+		count = (endtime - s_paintedtime) * dma.channels;
+		out_mask = dma.samples - 1; 
+		out_idx = s_paintedtime * dma.channels & out_mask;
+		step = 3 - dma.channels;
+
+		if (dma.samplebits == 16)
+		{
+			short *out = (short *) pbuf;
+			while (count--)
+			{
+				val = *p >> 8;
+				p+= step;
+				if (val > 0x7fff)
+					val = 0x7fff;
+				else if (val < -32768)
+					val = -32768;
+				out[out_idx] = val;
+				out_idx = (out_idx + 1) & out_mask;
+			}
+		}
+		else if (dma.samplebits == 8)
+		{
+			unsigned char *out = (unsigned char *) pbuf;
+			while (count--)
+			{
+				val = *p >> 8;
+				p+= step;
+				if (val > 0x7fff)
+					val = 0x7fff;
+				else if (val < -32768)
+					val = -32768;
+				out[out_idx] = (val>>8) + 128;
+				out_idx = (out_idx + 1) & out_mask;
+			}
+		}
+	}
+}
+
+
+/*
+===============================================================================
+
+CHANNEL MIXING
+
+===============================================================================
+*/
+
+#if idppc_altivec
+static void S_PaintChannelFrom16_altivec( channel_t *ch, const sfx_t *sc, int count, int sampleOffset, int bufferOffset ) {
+	int						data, aoff, boff;
+	int						leftvol, rightvol;
+	int						i, j;
+	portable_samplepair_t	*samp;
+	sndBuffer				*chunk;
+	short					*samples;
+	float					ooff, fdata, fdiv, fleftvol, frightvol;
+
+	samp = &paintbuffer[ bufferOffset ];
+
+	if (ch->doppler) {
+		sampleOffset = sampleOffset*ch->oldDopplerScale;
+	}
+
+	chunk = sc->soundData;
+	while (sampleOffset>=SND_CHUNK_SIZE) {
+		chunk = chunk->next;
+		sampleOffset -= SND_CHUNK_SIZE;
+		if (!chunk) {
+			chunk = sc->soundData;
+		}
+	}
+
+	if (!ch->doppler || ch->dopplerScale==1.0f) {
+		vector signed short volume_vec;
+		vector unsigned int volume_shift;
+		int vectorCount, samplesLeft, chunkSamplesLeft;
+		leftvol = ch->leftvol*snd_vol;
+		rightvol = ch->rightvol*snd_vol;
+		samples = chunk->sndChunk;
+		((short *)&volume_vec)[0] = leftvol;
+		((short *)&volume_vec)[1] = leftvol;
+		((short *)&volume_vec)[4] = leftvol;
+		((short *)&volume_vec)[5] = leftvol;
+		((short *)&volume_vec)[2] = rightvol;
+		((short *)&volume_vec)[3] = rightvol;
+		((short *)&volume_vec)[6] = rightvol;
+		((short *)&volume_vec)[7] = rightvol;
+		volume_shift = vec_splat_u32(8);
+		i = 0;
+
+		while(i < count) {
+			/* Try to align destination to 16-byte boundary */
+			while(i < count && (((unsigned long)&samp[i] & 0x1f) || ((count-i) < 8) || ((SND_CHUNK_SIZE - sampleOffset) < 8))) {
+				data  = samples[sampleOffset++];
+				samp[i].left += (data * leftvol)>>8;
+				samp[i].right += (data * rightvol)>>8;
+	
+				if (sampleOffset == SND_CHUNK_SIZE) {
+					chunk = chunk->next;
+					samples = chunk->sndChunk;
+					sampleOffset = 0;
+				}
+				i++;
+			}
+			/* Destination is now aligned.  Process as many 8-sample 
+			   chunks as we can before we run out of room from the current
+			   sound chunk.  We do 8 per loop to avoid extra source data reads. */
+			samplesLeft = count - i;
+			chunkSamplesLeft = SND_CHUNK_SIZE - sampleOffset;
+			if(samplesLeft > chunkSamplesLeft)
+				samplesLeft = chunkSamplesLeft;
+			
+			vectorCount = samplesLeft / 8;
+			
+			if(vectorCount)
+			{
+				vector unsigned char tmp;
+				vector short s0, s1, sampleData0, sampleData1;
+				vector signed int merge0, merge1;
+				vector signed int d0, d1, d2, d3;				
+				vector unsigned char samplePermute0 =
+					VECCONST_UINT8(0, 1, 4, 5, 0, 1, 4, 5, 2, 3, 6, 7, 2, 3, 6, 7);
+				vector unsigned char samplePermute1 = 
+					VECCONST_UINT8(8, 9, 12, 13, 8, 9, 12, 13, 10, 11, 14, 15, 10, 11, 14, 15);
+				vector unsigned char loadPermute0, loadPermute1;
+				
+				// Rather than permute the vectors after we load them to do the sample
+				// replication and rearrangement, we permute the alignment vector so
+				// we do everything in one step below and avoid data shuffling.
+				tmp = vec_lvsl(0,&samples[sampleOffset]);								
+				loadPermute0 = vec_perm(tmp,tmp,samplePermute0);
+				loadPermute1 = vec_perm(tmp,tmp,samplePermute1);
+				
+				s0 = *(vector short *)&samples[sampleOffset];
+				while(vectorCount)
+				{
+					/* Load up source (16-bit) sample data */
+					s1 = *(vector short *)&samples[sampleOffset+7];
+					
+					/* Load up destination sample data */
+					d0 = *(vector signed int *)&samp[i];
+					d1 = *(vector signed int *)&samp[i+2];
+					d2 = *(vector signed int *)&samp[i+4];
+					d3 = *(vector signed int *)&samp[i+6];
+
+					sampleData0 = vec_perm(s0,s1,loadPermute0);
+					sampleData1 = vec_perm(s0,s1,loadPermute1);
+					
+					merge0 = vec_mule(sampleData0,volume_vec);
+					merge0 = vec_sra(merge0,volume_shift);	/* Shift down to proper range */
+					
+					merge1 = vec_mulo(sampleData0,volume_vec);
+					merge1 = vec_sra(merge1,volume_shift);
+					
+					d0 = vec_add(merge0,d0);
+					d1 = vec_add(merge1,d1);
+					
+					merge0 = vec_mule(sampleData1,volume_vec);
+					merge0 = vec_sra(merge0,volume_shift);	/* Shift down to proper range */
+					
+					merge1 = vec_mulo(sampleData1,volume_vec);
+					merge1 = vec_sra(merge1,volume_shift);					
+
+					d2 = vec_add(merge0,d2);
+					d3 = vec_add(merge1,d3);
+
+					/* Store destination sample data */
+					*(vector signed int *)&samp[i] = d0;
+					*(vector signed int *)&samp[i+2] = d1;
+					*(vector signed int *)&samp[i+4] = d2;
+					*(vector signed int *)&samp[i+6] = d3;
+
+					i += 8;
+					vectorCount--;
+					s0 = s1;
+					sampleOffset += 8;
+				}
+				if (sampleOffset == SND_CHUNK_SIZE) {
+					chunk = chunk->next;
+					samples = chunk->sndChunk;
+					sampleOffset = 0;
+				}
+			}
+		}
+	} else {
+		fleftvol = ch->leftvol*snd_vol;
+		frightvol = ch->rightvol*snd_vol;
+
+		ooff = sampleOffset;
+		samples = chunk->sndChunk;
+		
+		for ( i=0 ; i<count ; i++ ) {
+
+			aoff = ooff;
+			ooff = ooff + ch->dopplerScale;
+			boff = ooff;
+			fdata = 0;
+			for (j=aoff; j<boff; j++) {
+				if (j == SND_CHUNK_SIZE) {
+					chunk = chunk->next;
+					if (!chunk) {
+						chunk = sc->soundData;
+					}
+					samples = chunk->sndChunk;
+					ooff -= SND_CHUNK_SIZE;
+				}
+				fdata  += samples[j&(SND_CHUNK_SIZE-1)];
+			}
+			fdiv = 256 * (boff-aoff);
+			samp[i].left += (fdata * fleftvol)/fdiv;
+			samp[i].right += (fdata * frightvol)/fdiv;
+		}
+	}
+}
+#endif
+
+static void S_PaintChannelFrom16_scalar( channel_t *ch, const sfx_t *sc, int count, int sampleOffset, int bufferOffset ) {
+	int						data, aoff, boff;
+	int						leftvol, rightvol;
+	int						i, j;
+	portable_samplepair_t	*samp;
+	sndBuffer				*chunk;
+	short					*samples;
+	float					ooff, fdata, fdiv, fleftvol, frightvol;
+
+	samp = &paintbuffer[ bufferOffset ];
+
+	if (ch->doppler) {
+		sampleOffset = sampleOffset*ch->oldDopplerScale;
+	}
+
+	chunk = sc->soundData;
+	while (sampleOffset>=SND_CHUNK_SIZE) {
+		chunk = chunk->next;
+		sampleOffset -= SND_CHUNK_SIZE;
+		if (!chunk) {
+			chunk = sc->soundData;
+		}
+	}
+
+	if (!ch->doppler || ch->dopplerScale==1.0f) {
+		leftvol = ch->leftvol*snd_vol;
+		rightvol = ch->rightvol*snd_vol;
+		samples = chunk->sndChunk;
+		for ( i=0 ; i<count ; i++ ) {
+			data  = samples[sampleOffset++];
+			samp[i].left += (data * leftvol)>>8;
+			samp[i].right += (data * rightvol)>>8;
+
+			if (sampleOffset == SND_CHUNK_SIZE) {
+				chunk = chunk->next;
+				samples = chunk->sndChunk;
+				sampleOffset = 0;
+			}
+		}
+	} else {
+		fleftvol = ch->leftvol*snd_vol;
+		frightvol = ch->rightvol*snd_vol;
+
+		ooff = sampleOffset;
+		samples = chunk->sndChunk;
+		
+
+
+
+		for ( i=0 ; i<count ; i++ ) {
+
+			aoff = ooff;
+			ooff = ooff + ch->dopplerScale;
+			boff = ooff;
+			fdata = 0;
+			for (j=aoff; j<boff; j++) {
+				if (j == SND_CHUNK_SIZE) {
+					chunk = chunk->next;
+					if (!chunk) {
+						chunk = sc->soundData;
+					}
+					samples = chunk->sndChunk;
+					ooff -= SND_CHUNK_SIZE;
+				}
+				fdata  += samples[j&(SND_CHUNK_SIZE-1)];
+			}
+			fdiv = 256 * (boff-aoff);
+			samp[i].left += (fdata * fleftvol)/fdiv;
+			samp[i].right += (fdata * frightvol)/fdiv;
+		}
+	}
+}
+
+static void S_PaintChannelFrom16( channel_t *ch, const sfx_t *sc, int count, int sampleOffset, int bufferOffset ) {
+#if idppc_altivec
+	if (com_altivec->integer) {
+		// must be in a seperate function or G3 systems will crash.
+		S_PaintChannelFrom16_altivec( ch, sc, count, sampleOffset, bufferOffset );
+		return;
+	}
+#endif
+	S_PaintChannelFrom16_scalar( ch, sc, count, sampleOffset, bufferOffset );
+}
+
+void S_PaintChannelFromWavelet( channel_t *ch, sfx_t *sc, int count, int sampleOffset, int bufferOffset ) {
+	int						data;
+	int						leftvol, rightvol;
+	int						i;
+	portable_samplepair_t	*samp;
+	sndBuffer				*chunk;
+	short					*samples;
+
+	leftvol = ch->leftvol*snd_vol;
+	rightvol = ch->rightvol*snd_vol;
+
+	i = 0;
+	samp = &paintbuffer[ bufferOffset ];
+	chunk = sc->soundData;
+	while (sampleOffset>=(SND_CHUNK_SIZE_FLOAT*4)) {
+		chunk = chunk->next;
+		sampleOffset -= (SND_CHUNK_SIZE_FLOAT*4);
+		i++;
+	}
+
+	if (i!=sfxScratchIndex || sfxScratchPointer != sc) {
+		S_AdpcmGetSamples( chunk, sfxScratchBuffer );
+		sfxScratchIndex = i;
+		sfxScratchPointer = sc;
+	}
+
+	samples = sfxScratchBuffer;
+
+	for ( i=0 ; i<count ; i++ ) {
+		data  = samples[sampleOffset++];
+		samp[i].left += (data * leftvol)>>8;
+		samp[i].right += (data * rightvol)>>8;
+
+		if (sampleOffset == SND_CHUNK_SIZE*2) {
+			chunk = chunk->next;
+			decodeWavelet(chunk, sfxScratchBuffer);
+			sfxScratchIndex++;
+			sampleOffset = 0;
+		}
+	}
+}
+
+void S_PaintChannelFromADPCM( channel_t *ch, sfx_t *sc, int count, int sampleOffset, int bufferOffset ) {
+	int						data;
+	int						leftvol, rightvol;
+	int						i;
+	portable_samplepair_t	*samp;
+	sndBuffer				*chunk;
+	short					*samples;
+
+	leftvol = ch->leftvol*snd_vol;
+	rightvol = ch->rightvol*snd_vol;
+
+	i = 0;
+	samp = &paintbuffer[ bufferOffset ];
+	chunk = sc->soundData;
+
+	if (ch->doppler) {
+		sampleOffset = sampleOffset*ch->oldDopplerScale;
+	}
+
+	while (sampleOffset>=(SND_CHUNK_SIZE*4)) {
+		chunk = chunk->next;
+		sampleOffset -= (SND_CHUNK_SIZE*4);
+		i++;
+	}
+
+	if (i!=sfxScratchIndex || sfxScratchPointer != sc) {
+		S_AdpcmGetSamples( chunk, sfxScratchBuffer );
+		sfxScratchIndex = i;
+		sfxScratchPointer = sc;
+	}
+
+	samples = sfxScratchBuffer;
+
+	for ( i=0 ; i<count ; i++ ) {
+		data  = samples[sampleOffset++];
+		samp[i].left += (data * leftvol)>>8;
+		samp[i].right += (data * rightvol)>>8;
+
+		if (sampleOffset == SND_CHUNK_SIZE*4) {
+			chunk = chunk->next;
+			S_AdpcmGetSamples( chunk, sfxScratchBuffer);
+			sampleOffset = 0;
+			sfxScratchIndex++;
+		}
+	}
+}
+
+void S_PaintChannelFromMuLaw( channel_t *ch, sfx_t *sc, int count, int sampleOffset, int bufferOffset ) {
+	int						data;
+	int						leftvol, rightvol;
+	int						i;
+	portable_samplepair_t	*samp;
+	sndBuffer				*chunk;
+	byte					*samples;
+	float					ooff;
+
+	leftvol = ch->leftvol*snd_vol;
+	rightvol = ch->rightvol*snd_vol;
+
+	samp = &paintbuffer[ bufferOffset ];
+	chunk = sc->soundData;
+	while (sampleOffset>=(SND_CHUNK_SIZE*2)) {
+		chunk = chunk->next;
+		sampleOffset -= (SND_CHUNK_SIZE*2);
+		if (!chunk) {
+			chunk = sc->soundData;
+		}
+	}
+
+	if (!ch->doppler) {
+		samples = (byte *)chunk->sndChunk + sampleOffset;
+		for ( i=0 ; i<count ; i++ ) {
+			data  = mulawToShort[*samples];
+			samp[i].left += (data * leftvol)>>8;
+			samp[i].right += (data * rightvol)>>8;
+			samples++;
+			if (samples == (byte *)chunk->sndChunk+(SND_CHUNK_SIZE*2)) {
+				chunk = chunk->next;
+				samples = (byte *)chunk->sndChunk;
+			}
+		}
+	} else {
+		ooff = sampleOffset;
+		samples = (byte *)chunk->sndChunk;
+		for ( i=0 ; i<count ; i++ ) {
+			data  = mulawToShort[samples[(int)(ooff)]];
+			ooff = ooff + ch->dopplerScale;
+			samp[i].left += (data * leftvol)>>8;
+			samp[i].right += (data * rightvol)>>8;
+			if (ooff >= SND_CHUNK_SIZE*2) {
+				chunk = chunk->next;
+				if (!chunk) {
+					chunk = sc->soundData;
+				}
+				samples = (byte *)chunk->sndChunk;
+				ooff = 0.0;
+			}
+		}
+	}
+}
+
+/*
+===================
+S_PaintChannels
+===================
+*/
+void S_PaintChannels( int endtime ) {
+	int 	i;
+	int 	end;
+	channel_t *ch;
+	sfx_t	*sc;
+	int		ltime, count;
+	int		sampleOffset;
+
+
+	snd_vol = s_volume->value*255;
+
+//Com_Printf ("%i to %i\n", s_paintedtime, endtime);
+	while ( s_paintedtime < endtime ) {
+		// if paintbuffer is smaller than DMA buffer
+		// we may need to fill it multiple times
+		end = endtime;
+		if ( endtime - s_paintedtime > PAINTBUFFER_SIZE ) {
+			end = s_paintedtime + PAINTBUFFER_SIZE;
+		}
+
+		// clear the paint buffer to either music or zeros
+		if ( s_rawend < s_paintedtime ) {
+			if ( s_rawend ) {
+				//Com_DPrintf ("background sound underrun\n");
+			}
+			Com_Memset(paintbuffer, 0, (end - s_paintedtime) * sizeof(portable_samplepair_t));
+		} else {
+			// copy from the streaming sound source
+			int		s;
+			int		stop;
+
+			stop = (end < s_rawend) ? end : s_rawend;
+
+			for ( i = s_paintedtime ; i < stop ; i++ ) {
+				s = i&(MAX_RAW_SAMPLES-1);
+				paintbuffer[i-s_paintedtime] = s_rawsamples[s];
+			}
+//		if (i != end)
+//			Com_Printf ("partial stream\n");
+//		else
+//			Com_Printf ("full stream\n");
+			for ( ; i < end ; i++ ) {
+				paintbuffer[i-s_paintedtime].left =
+				paintbuffer[i-s_paintedtime].right = 0;
+			}
+		}
+
+		// paint in the channels.
+		ch = s_channels;
+		for ( i = 0; i < MAX_CHANNELS ; i++, ch++ ) {		
+			if ( !ch->thesfx || (ch->leftvol<0.25 && ch->rightvol<0.25 )) {
+				continue;
+			}
+
+			ltime = s_paintedtime;
+			sc = ch->thesfx;
+
+			sampleOffset = ltime - ch->startSample;
+			count = end - ltime;
+			if ( sampleOffset + count > sc->soundLength ) {
+				count = sc->soundLength - sampleOffset;
+			}
+
+			if ( count > 0 ) {	
+				if( sc->soundCompressionMethod == 1) {
+					S_PaintChannelFromADPCM		(ch, sc, count, sampleOffset, ltime - s_paintedtime);
+				} else if( sc->soundCompressionMethod == 2) {
+					S_PaintChannelFromWavelet	(ch, sc, count, sampleOffset, ltime - s_paintedtime);
+				} else if( sc->soundCompressionMethod == 3) {
+					S_PaintChannelFromMuLaw	(ch, sc, count, sampleOffset, ltime - s_paintedtime);
+				} else {
+					S_PaintChannelFrom16		(ch, sc, count, sampleOffset, ltime - s_paintedtime);
+				}
+			}
+		}
+
+		// paint in the looped channels.
+		ch = loop_channels;
+		for ( i = 0; i < numLoopChannels ; i++, ch++ ) {		
+			if ( !ch->thesfx || (!ch->leftvol && !ch->rightvol )) {
+				continue;
+			}
+
+			ltime = s_paintedtime;
+			sc = ch->thesfx;
+
+			if (sc->soundData==NULL || sc->soundLength==0) {
+				continue;
+			}
+			// we might have to make two passes if it
+			// is a looping sound effect and the end of
+			// the sample is hit
+			do {
+				sampleOffset = (ltime % sc->soundLength);
+
+				count = end - ltime;
+				if ( sampleOffset + count > sc->soundLength ) {
+					count = sc->soundLength - sampleOffset;
+				}
+
+				if ( count > 0 ) {	
+					if( sc->soundCompressionMethod == 1) {
+						S_PaintChannelFromADPCM		(ch, sc, count, sampleOffset, ltime - s_paintedtime);
+					} else if( sc->soundCompressionMethod == 2) {
+						S_PaintChannelFromWavelet	(ch, sc, count, sampleOffset, ltime - s_paintedtime);
+					} else if( sc->soundCompressionMethod == 3) {
+						S_PaintChannelFromMuLaw		(ch, sc, count, sampleOffset, ltime - s_paintedtime);
+					} else {
+						S_PaintChannelFrom16		(ch, sc, count, sampleOffset, ltime - s_paintedtime);
+					}
+					ltime += count;
+				}
+			} while ( ltime < end);
+		}
+
+		// transfer out according to DMA format
+		S_TransferPaintBuffer( end );
+		s_paintedtime = end;
+	}
+}

src/client/snd_public.h

@@ -0,0 +1,73 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+
+void S_Init( void );
+void S_Shutdown( void );
+
+// if origin is NULL, the sound will be dynamically sourced from the entity
+void S_StartSound( vec3_t origin, int entnum, int entchannel, sfxHandle_t sfx );
+void S_StartLocalSound( sfxHandle_t sfx, int channelNum );
+
+void S_StartBackgroundTrack( const char *intro, const char *loop );
+void S_StopBackgroundTrack( void );
+
+// cinematics and voice-over-network will send raw samples
+// 1.0 volume will be direct output of source samples
+void S_RawSamples (int samples, int rate, int width, int channels, 
+				   const byte *data, float volume);
+
+// stop all sounds and the background track
+void S_StopAllSounds( void );
+
+// all continuous looping sounds must be added before calling S_Update
+void S_ClearLoopingSounds( qboolean killall );
+void S_AddLoopingSound( int entityNum, const vec3_t origin, const vec3_t velocity, sfxHandle_t sfx );
+void S_AddRealLoopingSound( int entityNum, const vec3_t origin, const vec3_t velocity, sfxHandle_t sfx );
+void S_StopLoopingSound(int entityNum );
+
+// recompute the reletive volumes for all running sounds
+// reletive to the given entityNum / orientation
+void S_Respatialize( int entityNum, const vec3_t origin, vec3_t axis[3], int inwater );
+
+// let the sound system know where an entity currently is
+void S_UpdateEntityPosition( int entityNum, const vec3_t origin );
+
+void S_Update( void );
+
+void S_DisableSounds( void );
+
+void S_BeginRegistration( void );
+
+// RegisterSound will allways return a valid sample, even if it
+// has to create a placeholder.  This prevents continuous filesystem
+// checks for missing files
+sfxHandle_t	S_RegisterSound( const char *sample, qboolean compressed );
+
+void S_DisplayFreeMemory(void);
+
+void S_ClearSoundBuffer( void );
+
+void SNDDMA_Activate( void );
+
+void S_UpdateBackgroundTrack( void );

src/client/snd_wavelet.c

@@ -0,0 +1,254 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+#include "snd_local.h"
+
+long myftol( float f );
+
+#define C0 0.4829629131445341
+#define C1 0.8365163037378079
+#define C2 0.2241438680420134
+#define C3 -0.1294095225512604
+
+void daub4(float b[], unsigned long n, int isign)
+{
+	float wksp[4097];
+	float	*a=b-1;						// numerical recipies so a[1] = b[0]
+
+	unsigned long nh,nh1,i,j;
+
+	if (n < 4) return;
+
+	nh1=(nh=n >> 1)+1;
+	if (isign >= 0) {
+		for (i=1,j=1;j<=n-3;j+=2,i++) {
+			wksp[i]	   = C0*a[j]+C1*a[j+1]+C2*a[j+2]+C3*a[j+3];
+			wksp[i+nh] = C3*a[j]-C2*a[j+1]+C1*a[j+2]-C0*a[j+3];
+		}
+		wksp[i   ] = C0*a[n-1]+C1*a[n]+C2*a[1]+C3*a[2];
+		wksp[i+nh] = C3*a[n-1]-C2*a[n]+C1*a[1]-C0*a[2];
+	} else {
+		wksp[1] = C2*a[nh]+C1*a[n]+C0*a[1]+C3*a[nh1];
+		wksp[2] = C3*a[nh]-C0*a[n]+C1*a[1]-C2*a[nh1];
+		for (i=1,j=3;i<nh;i++) {
+			wksp[j++] = C2*a[i]+C1*a[i+nh]+C0*a[i+1]+C3*a[i+nh1];
+			wksp[j++] = C3*a[i]-C0*a[i+nh]+C1*a[i+1]-C2*a[i+nh1];
+		}
+	}
+	for (i=1;i<=n;i++) {
+		a[i]=wksp[i];
+	}
+}
+
+void wt1(float a[], unsigned long n, int isign)
+{
+	unsigned long nn;
+	int inverseStartLength = n/4;
+	if (n < inverseStartLength) return;
+	if (isign >= 0) {
+		for (nn=n;nn>=inverseStartLength;nn>>=1) daub4(a,nn,isign);
+	} else {
+		for (nn=inverseStartLength;nn<=n;nn<<=1) daub4(a,nn,isign);
+	}
+}
+
+/* The number of bits required by each value */
+static unsigned char numBits[] = {
+   0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+   6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
+   7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+   7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+   8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+   8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+   8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+   8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+};
+
+byte MuLawEncode(short s) {
+	unsigned long adjusted;
+	byte sign, exponent, mantissa;
+
+	sign = (s<0)?0:0x80;
+
+	if (s<0) s=-s;
+	adjusted = (long)s << (16-sizeof(short)*8);
+	adjusted += 128L + 4L;
+	if (adjusted > 32767) adjusted = 32767;
+	exponent = numBits[(adjusted>>7)&0xff] - 1;
+	mantissa = (adjusted>>(exponent+3))&0xf;
+	return ~(sign | (exponent<<4) | mantissa);
+}
+
+short MuLawDecode(byte uLaw) {
+	signed long adjusted;
+	byte exponent, mantissa;
+
+	uLaw = ~uLaw;
+	exponent = (uLaw>>4) & 0x7;
+	mantissa = (uLaw&0xf) + 16;
+	adjusted = (mantissa << (exponent +3)) - 128 - 4;
+
+	return (uLaw & 0x80)? adjusted : -adjusted;
+}
+
+short mulawToShort[256];
+static qboolean madeTable = qfalse;
+
+static	int	NXStreamCount;
+
+void NXPutc(NXStream *stream, char out) {
+	stream[NXStreamCount++] = out;
+}
+
+
+void encodeWavelet( sfx_t *sfx, short *packets) {
+	float	wksp[4097], temp;
+	int		i, samples, size;
+	sndBuffer		*newchunk, *chunk;
+	byte			*out;
+
+	if (!madeTable) {
+		for (i=0;i<256;i++) {
+			mulawToShort[i] = (float)MuLawDecode((byte)i);
+		}
+		madeTable = qtrue;
+	}
+	chunk = NULL;
+
+	samples = sfx->soundLength;
+	while(samples>0) {
+		size = samples;
+		if (size>(SND_CHUNK_SIZE*2)) {
+			size = (SND_CHUNK_SIZE*2);
+		}
+
+		if (size<4) {
+			size = 4;
+		}
+
+		newchunk = SND_malloc();
+		if (sfx->soundData == NULL) {
+			sfx->soundData = newchunk;
+		} else {
+			chunk->next = newchunk;
+		}
+		chunk = newchunk;
+		for(i=0; i<size; i++) {
+			wksp[i] = *packets;
+			packets++;
+		}
+		wt1(wksp, size, 1);
+		out = (byte *)chunk->sndChunk;
+
+		for(i=0;i<size;i++) {
+			temp = wksp[i];
+			if (temp > 32767) temp = 32767; else if (temp<-32768) temp = -32768;
+			out[i] = MuLawEncode((short)temp);
+		}
+
+		chunk->size = size;
+		samples -= size;
+	}
+}
+
+void decodeWavelet(sndBuffer *chunk, short *to) {
+	float			wksp[4097];
+	int				i;
+	byte			*out;
+
+	int size = chunk->size;
+	
+	out = (byte *)chunk->sndChunk;
+	for(i=0;i<size;i++) {
+		wksp[i] = mulawToShort[out[i]];
+	}
+
+	wt1(wksp, size, -1);
+	
+	if (!to) return;
+
+	for(i=0; i<size; i++) {
+		to[i] = wksp[i];
+	}
+}
+
+
+void encodeMuLaw( sfx_t *sfx, short *packets) {
+	int		i, samples, size, grade, poop;
+	sndBuffer		*newchunk, *chunk;
+	byte			*out;
+
+	if (!madeTable) {
+		for (i=0;i<256;i++) {
+			mulawToShort[i] = (float)MuLawDecode((byte)i);
+		}
+		madeTable = qtrue;
+	}
+
+	chunk = NULL;
+	samples = sfx->soundLength;
+	grade = 0;
+
+	while(samples>0) {
+		size = samples;
+		if (size>(SND_CHUNK_SIZE*2)) {
+			size = (SND_CHUNK_SIZE*2);
+		}
+
+		newchunk = SND_malloc();
+		if (sfx->soundData == NULL) {
+			sfx->soundData = newchunk;
+		} else {
+			chunk->next = newchunk;
+		}
+		chunk = newchunk;
+		out = (byte *)chunk->sndChunk;
+		for(i=0; i<size; i++) {
+			poop = packets[0]+grade;
+			if (poop>32767) {
+				poop = 32767;
+			} else if (poop<-32768) {
+				poop = -32768;
+			}
+			out[i] = MuLawEncode((short)poop);
+			grade = poop - mulawToShort[out[i]];
+			packets++;
+		}
+		chunk->size = size;
+		samples -= size;
+	}
+}
+
+void decodeMuLaw(sndBuffer *chunk, short *to) {
+	int				i;
+	byte			*out;
+
+	int size = chunk->size;
+	
+	out = (byte *)chunk->sndChunk;
+	for(i=0;i<size;i++) {
+		to[i] = mulawToShort[out[i]];
+	}
+}
+
+